Each year, two fellows are placed at Argonne for the prestigious one-year national program to conduct research on an area of their choice. Fellows are selected through a rigorous review based on merit, rank in their respective career fields, and education and experience relevant to Argonne’s mission.
The Air Force Fellows program maintains and strengthens a longstanding relationship between the laboratory and Air Force, and reinforces the key role played by Argonne’s national security programs.
2022 – 2023
Lieutenant Colonel Jesse D. Breau
Lieutenant Colonel Jesse D. Breau was born in Albion, Maine. He received his commission from the United States Air Force Academy in 2004. He is a graduate of the U.S. Air Force Weapons School and is a command pilot with 2,400 flying hours and over 1,000 combat hours. Lt. Col. Breau led an Expeditionary Operations Support Squadron in OPERATION Inherent Resolve, and served as commander of the 24th Tactical Air Support Squadron at Nellis Air Force Base. He was most recently assigned to the USAF Warfare Center as the Chief of Warfighter Integration.
Major Christa N. Schiesswohl
Maj Christa N. Schiesswohl is Chief, Advanced Battle Management System Space, Operational C2 Division, Space Systems Command, Los Angeles Air Force Base, California. She leads the integration of Space capabilities into a Department of the Air Force modernization effort to create a secure, resilient, digital network environment for data sharing to enable Joint Warfighters decision-making superiority.
Maj. Schiesswohl commissioned through the ROTC program at the University of Colorado in 2010. She has served the Air Force and Space Force in a number of acquisition capacities including Spacecraft Responsible Engineer at Cape Canaveral Air Force Station and Deputy Chief of the Fuels & Energy Branch at the Air Force Research Laboratory. Prior to her current position, Maj. Schiesswohl was the Deputy Chief of the Systems Engineering Integration and Test Integrated Product Team, overseeing systems engineering for the $17 billion GPS III and GPS IIIF satellite programs, which provide premier positioning, navigation, and timing data to over four billion military, allied, and civilian users worldwide.
2021 – 2022
Lieutenant Colonel William R. (Reed) Kastner
Lieutenant Colonel Reed Kastner is the Commander, 334th Fighter Squadron, 4th Operations Group, 4th Fighter Wing, Seymour Johnson Air Force Base, N.C. He commands a Formal Training Unit composed of 300 personnel and 22 F-15Es responsible for training over 90 F-15E students annually in six formal course syllabi.
Lt. Col Kastner commissioned in 2003 after graduating from The Citadel in Charleston, S.C. He is an F-15E Weapon Systems Officer with over 2,300 flight hours, including over 500 combat hours. His flying qualifications include Instructor, Evaluator, and Mission Commander. Prior to his current position, Lt. Col Kastner served as Deputy Commander, 4th Operations Group, 4th Fighter Wing, Seymour Johnson Air Force Base, N.C.
Major Benjamin N. Worrall
Major Benjamin “Ditch” Worrall served as the Chief of Adversary Support and an F-15C Weapons Instructor Course Instructor Pilot for the United States Air Force Weapons School at Nellis Air Force Base, Nevada. The U.S. Air Force Weapons School trains tactical experts and leaders to control and exploit air, space and cyber on behalf of the joint force.
Maj. Worrall entered the Air Force after graduating as a Distinguished Graduate from the United States Air Force (USAF) Academy and received his commission in 2008. For his first assignment, he was selected to attend Virginia Tech as part of the Air Force Civilian Institution Program, where he earned a Master of Science degree in Aeronautical engineering. Maj. Worrall then attended the Euro-NATO Joint Jet Pilot Training Program at Sheppard AFB, TX, and F-15C initial training at Kingsley Field, OR. His first operational assignment was with the 44th Fighter Squadron at Kadena AB, Japan, where he was the Assistant Chief of Weapons and Chief of Scheduling. His next assignment was to the 67th Fighter Squadron, Kadena AB, Japan, where he became an F-15C Instructor Pilot and Flight Commander. While at Kadena AB, he was selected to attend the USAF Weapons School, Nellis AFB, NV, followed by an assignment back to the 67th Fighter Squadron where he served as the Chief of Weapons and Tactics. Maj. Worrall’s following assignment was to the 433d Weapons Squadron, USAF Weapons School, Nellis AFB, NV, where he served as an F-15C Weapons Instructor Pilot, Scheduling Flight Commander, and USAF Weapons School Chief of Adversary Support.
Maj. Worrall is a Senior Pilot with over 1200 hours in the F-15C.
2020 – 2021
Lieutenant Colonel Zachary C. Gray
Lieutenant Colonel Zachary C. Gray is the Material Leader, Presidential Aircraft Recapitalization Program, Air Force Life Cycle Management Center, Wright-Patterson AFB, Ohio. His Air Vehicle team is developing the Flight Systems, Survivability Systems, and Presidential Interiors for the next Air Force One fleet.
Prior to his current assignment, Lt. Col Gray was the United Arab Emirates, Country Director at Office of the Deputy Under Secretary of the Air Force, International Affairs, Headquarters U.S. Air Force, Washington, D.C. He was the principal advisor to the Deputy Under Secretary of the Air Force, Secretary of the Air Force, and Chief of Staff of the Air Force for Political-Military Affairs, Security Cooperation, Building Partner Capacity and Foreign Military Sales Cases.
Lt. Col Gray entered the Air Force in 2002 after receiving a commission from the Reserve Officer Training Corps at the University of Florida, Gainesville, Florida. He has served in program management, developmental engineering, and staff roles at the Air Force Research Laboratory, Missile Defense Agency, Air Force Nuclear Weapon Center, Air Force Program Executive Office for Strategic Systems, and Air Force Life Cycle Management Center. Lt. Col. Gray holds a master’s degree in computer engineering from the Air Force Institute of Technology and a bachelor’s degree in electrical and computer engineering from University of Florida.
Major Daniel S. Edelstein
Major Daniel S. Edelstein is the Assistant Director of Operations for the 418th Flight Test Squadron, Edwards AFB, CA. He directs flight operations for the 292-member Global Reach Combined Test Force, executing developmental test across five different aircraft types. During his tenure in the 418th Flight Test Squadron, Major Edelstein was instrumental in the certification of the USAF’s new tanker replacement, the KC-46A.
Maj. Edelstein earned his commission in 2007 graduating from the United States Air Force Academy in Colorado Springs, CO. After completing Undergraduate Pilot Training in 2008, he was assigned to the 4th Airlift Squadron to fly the C-17A aircraft, where he held several ratings and positions culminating in Chief Executive Officer and Instructor Pilot. He was then assigned to the 58th Airlift Squadron where he held several positions culminating in Flight Commander and C-17 Formal Training Unit Evaluator Pilot. Maj. Edelstein graduated from the U.S. Air Force Test Pilot School at Edwards AFB in 2016 and was assigned to the Global Reach Combined Test Force as an Experimental Test Pilot for the C-17 and KC-46. He received his master’s degree in physics from the University of Washington and a bachelor’s degree in physics from the United States Air Force Academy.
2019 – 2020
Lieutenant Colonel Daniel E. Finkelstein
Lieutenant Colonel Daniel E. Finkelstein is the Deputy Commander of the 10th Mission Support Group (MSG) at the United States Air Force Academy (USAFA). He is responsible for leading six squadrons comprising of more than 2,700 military, civilian, and contract personnel. MSG provides security, communication, information technology, civil engineering, contracting, logistics, transportation, human resources, lodging, dining, and recreational services for USAFA, its cadets, faculty, their families, and the military community.
Lt. Col. Finkelstein earned his commission from University of Kentucky Reserve Officer Training Program in 1998. He was assigned to the 49th Test Evaluation Squadron where he was responsible for planning, executing, and analyzing live-fire weapons tests for the F-15E, F-16, B-52, and B-2 aircrafts. Lt. Col. Finkelstein has been deployed to Africa, Europe, Southwest Asia, Iraq, and Afghanistan and supported Operation Iraqi Freedom and Operation Enduring Freedom. Lt. Col. Finkelstein holds a master’s degree in applied mathematics and statistics and a doctorate in systems engineering from University of Virginia.
Major Kyle J. Krogh
Major Kyle J. Krogh is Commander of the 40th Flight Test Squadron, Detachment 1, at Davis-Monthan Air Force Base (AFB), Arizona. He leads a team of 23 military, civilian, and contractor personnel in the developmental and experimental testing of the A-10C aircraft with the Air Force Test Center. They work with the Air Force Reserve Command Air National Guard Test Center sharing assets and synergizes developmental, operational testing, and modernization of the A-10C.
Maj. Krogh received his commission from the Unites States Air Force Academy in 2007, where he studied aeronautical engineering. He holds a Master of Science degree in aeronautics and astronautics from University of Washington. After attending Euro-NATO Joint Jet Pilot Training, he served as an operational A-10 flight lead and Forward Air Controller (Airborne) at Osan Air Base, Republic of Korea and Moody Air Force Base, Georgia. Maj. Krogh completed one deployment in support of Operation Enduring Freedom, flying 102 combat missions in support of U.S. and coalition ground forces.
2018 – 2019
Lieutenant Colonel Shamekia Toliver
Lieutenant Colonel Shamekia Toliver is the commander, 7th Civil Engineer Squadron, 7th Mission Support Group, 7th Bomb Wing, located at Dyess Air Force Base, Texas. She commands an engineer force of 315 military and civilians spread over six diverse flights responsible for the effective operation and maintenance of a $2.9B physical plant supporting B-1B and C-130J weapon systems. As base fire marshall, she is responsible for all crash, fire and rescue services. Additionally, she is responsible for explosive ordnance disposal operations in support of assigned aircraft, the U.S. Secret Service and other federal agencies.
Toliver entered the Air Force in 1994 as an airman in the Enlisted Corps. She was selected for the Airman Scholarship Commissioning Program and gained her commission in 2002 through the Reserve Officer Training Corps. She holds a Master of Science degree in civil engineering and also holds a special experience identifier as a board certified and licensed professional engineer. Toliver is a native of Chicago.
Major Mason W. Kehs
Major Mason W. Kehs is the wing weapons officer for the 36th Wing at Andersen Air Force Base (AFB), Guam. He is responsible for ensuring the wing integrates both tenant and deployed flying squadrons into USPACOM Operational Plans. He also oversees the planning and execution of Continuous Bomber Presence missions, Operation Noble Eagle and various large force exercises that occur at Andersen AFB.
Kehs received his commission from the University of Illinois Reserve Officer Training Corps program in 2007, where he was a distinguished graduate. He earned his wings at Sheppard AFB, Texas in 2007. Kehs has served in three operational B-52 squadrons, performing duties in resource management, standardization and evaluation, training and tactics. In 2011, he deployed to Guam in support of the Pacific Continuous Bomber Presence mission. In 2014, he completed the USAF Weapons School as a distinguished graduate.
2017 – 2018
Colonel Christopher Snyder
By the time he arrived at Argonne, Snyder was a senior acquisition officer, flight test engineer, and program manager with more than 21 years in Air Force engineering, acquisition, and leadership positions. A Distinguished Graduate of the United States Air Force Test Pilot School, he had directed more than 130 flight test missions. Snyder’s work at Argonne focused on metal additive manufacturing (AM), particularly related to qualifying and certifying parts intended for aviation or aerospace use. He spent his fellowship year studying in situ methods for AM process control, and he worked with Argonne, Air Force, and General Electric scientists to develop the next research phase for studying microstructure evolution inside metal AM parts through X-ray imaging and diffraction at Argonne’s Advanced Photon Source. Snyder was promoted to the rank of Colonel during his tenure at Argonne.
Major Sean Richardson
Before his year at Argonne, Richardson had served twelve years as an Air Force pilot. He was an operational F-16 instructor pilot for four of those years, including a deployment to Afghanistan to provide close air support to the Army. He then worked as an F-16 operational test instructor pilot and project manager, doing tactical testing of new hardware and software in operationally relevant environments. Finally, he was an F-16 developmental test evaluator pilot, where he was the first to fly a variety of new hardware and software to examine its functionality. Richardson spent his year at Argonne studying and writing code for machine learning with a focus on applications useful for the detection of unmanned aerial systems. To that end, he programmed a low-cost computer and video camera to track airborne objects and to identify drones in places where they may pose a security concern.
2016 – 2017
Lieutenant Colonel Brian Gamble
At the time of his fellowship, Gamble was a senior acquisition officer, program manager, and aerospace engineer with more than 18 years of experience in Air Force acquisition programs ranging from nuclear ballistic missiles and nuclear bombs to Air Force fighter and conventional weapons programs. While at Argonne, he conducted an analysis of the current and future state of nanomaterial science with a focus on specific areas of interest for the Air Force. Gamble helped pioneer the first atomic-level study of friction between sexiphenyl and graphene nanoribbons, and through his work made a meaningful contribution to the nation’s understanding of basic energy science.
Major David Levene
When his fellowship year began, Levene was a combat-experienced Experimental Test Weapons Systems Officer with more than 1,300 flight hours in the F-15E and nearly 30 other military and civilian aircraft. A Distinguished Graduate of the United States Air Force Test Pilot School, he had flown test missions covering software, radar and engine testing, envelope expansion, electronic warfare system testing, hardware compatibility and environmental testing, human factors analysis, and testing of both fielded and unfielded air-to-air and air-to-ground weapons. Levene used his time at Argonne to take a “deep dive” into the opportunities and challenges associated with developing innovative technology for defense and, in just one year at the laboratory, helped advance the country’s understanding of basic energy science.
2015 – 2016
Colonel Christopher Lemanski
Major Jacob Leck
2014 – 2015
Lieutenant Colonel Robert Eninger
Major Kendra Fletcher
2013 – 2014
Colonel Earl Stolz
Major Michael Maginness
2012 – 2013
Lieutenant Colonel Eric Forsyth
Major Anthony Cagle
2011 – 2012
Major Matthew Michaud
Lieutenant Colonel Krystal Murphy
2010 – 2011
Lieutenant Colonel David Byer
Major Maria Kohler
2009 – 2010
Lieutenant Colonel Tasha Pravecek
Major Christopher Bishop
2008 – 2009
Lieutenant Colonel Jeffrey Gillen
Major Clinton Abell
2007 – 2008
Colonel Jeffrey Smith
Major Michelle Rauch Ewy
2006 – 2007
Colonel Warren Ward
Major David Benson