Ca.1971: TOS USAF as A-37B. Ca. 1980: Redesignated OA-37B. By 10/83:  23rd Tactical Air Support Squadron/602nd Tactical Air Control Wing, Bergstrom AFB, TX. By 7/88 to 1992: 169th Tactical Air Support Squadron/182nd Tactical Air Support Group (ANG), Peoria, IL. 1997: TOS Ecuadoran Air Force as FAE-368. 2/11: WFU. By 10/14: Aeronautics Superior Technical Institute, Latacunga, Ecuador.

A-26B contract as 44-34774. No service, direct to war assets in October 1945 for sale at Klingman, AZ. 2/46: NX67163. 12/2/46: NL67163. Converted to an executive transport. 4/48: Standard Oil of Chicago with c/r N67163. By 1961: N163Y. More executive modifications including Marksman-style nose. 8/65: N910Y. 1966: N917Y. 1985: Courtesy Aircraft, Rockford, IL. 3/85: Collings Foundation, Stowe, MA, restoration at Courtesy. 11/90: Warbirds and Vehicles Museum, Seattle, WA. 6/97: Air Station Museum, Arlington, WA. 1/10: Aero-Trans Corp., Ocala, FL, 1/12: Pasumek LLC of Provo, UT for restoration.

A-26B contract as 44-34774. No service, direct to war assets in October 1945 for sale at Klingman, AZ. 2/46: NX67163. 12/2/46: NL67163. Converted to an executive transport. 4/48: Standard Oil of Chicago with c/r N67163. By 1961: N163Y. More executive modifications including Marksman-style nose. 8/65: N910Y. 1966: N917Y. 1985: Courtesy Aircraft, Rockford, IL. 3/85: Collings Foundation, Stowe, MA, restoration at Courtesy. 11/90: Warbirds and Vehicles Museum, Seattle, WA. 6/97: Air Station Museum, Arlington, WA. 1/10: Aero-Trans Corp., Ocala, FL, 1/12: Pasumek LLC of Provo, UT for restoration.