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.
2023 – 2024
Lieutenant Colonel Joseph D. Langan
Lieutenant Colonel Joseph D. Langan is Commander, 354th Aircraft Maintenance Squadron, Eielson Air Force Base, Alaska. He is responsible for over 650 maintenance personnel across nine specialties and all aspects of sortie generation, repair and maintenance for the squadron that provides direct support of INDOPACOM’s only F-35 warfighting capability and for RED FLAG-ALASKA, the Pacific Air Force’s premier multinational large-force training exercise.
Lt. Col. Langan was commissioned in 2006 from the University of Virginia, where he earned his bachelor’s degree in aerospace engineering. He is a distinguished graduate of the aircraft
maintenance and munitions course, Sheppard AFB, Texas, as well as the Squadron Officer School, Maxwell AFB, Alabama, and U.S. Army Command and General Staff College, Ft. Leavenworth, Kansas. He earned a master’s in diplomacy from Norwich University. As a maintenance officer, he has served in a variety of leadership positions and supported diverse missions and multiple contingency operations with several airframes, including the F-15C, F-16, KC-135, B-1B, C-17, F-22, and F-35. Lt. Col. Langan has also managed General Officer Professional Military Education courses at Maxwell AFB, Alabama.
Major Justin A. Sadowski
Major Justin A. Sadowski is Deputy Division Chief, Concepts and Wargames, at the Space Warfighting Analysis Center, Colorado Springs, Colorado. He is a developmental engineer with experience in navigational flight test, satellite design and procurement, and the craft of wargaming. Maj. Sadowski is assigned to the Concepts and Wargaming division of the Space Security and Defense Program/Space Warfighting Analysis Center, where he is responsible for applying the art and science of analytical wargaming to force design hypotheses.
Maj. Sadowski received his commission from the Air Force ROTC Det. 280 at the University of Kansas, where he earned a bachelor’s degree in aerospace engineering. He holds a master’s in space systems engineering from Air Force Institute of Technology at Wright-Patterson AFB, Ohio, and is a 2019 graduate of Squadron Officer School at Maxwell AFB, Alabama. During various assignments, he has earned the Defense Meritorious Service Medal, the Joint Service Commendation Medal, the Air and Space Achievement Medal, the Joint Meritorious Unit Award, the Air and Space Outstanding Unit Award, the National Defense Service Medal and the Global War on Terrorism Service Medal.
2022 – 2023
Lieutenant Colonel Jesse D. Breau
Major Christa N. Schiesswohl
2021 – 2022
Lieutenant Colonel William R. (Reed) Kastner
Major Benjamin N. Worrall
2020 – 2021
Lieutenant Colonel Zachary C. Gray
Major Daniel S. Edelstein
2019 – 2020
Lieutenant Colonel Daniel E. Finkelstein
Major Kyle J. Krogh
2018 – 2019
Lieutenant Colonel Shamekia Toliver
Major Mason W. Kehs
2017 – 2018
Colonel Christopher Snyder
Major Sean Richardson
2016 – 2017
Lieutenant Colonel Brian Gamble
Major David Levene
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
2005 – 2006
