http://www.joebaugher.com/
USAAS/USAAC/USAAF/USAF Aircraft Serials
http://www.joebaugher.com/usaf_serials/usafserials.html
1943 Serial Numbers 43-5109 to 43-52437 Last revised March 31, 2012
http://www.joebaugher.com/usaf_serials/1943_2.html
Find 43-223
At the end of WWII, all? the surviving Martin B-26 Marauder were scrapped. In 1947, the now Independent Air Force dropped the "Attack" category, and the A-26 Invader became the B-26 Invader. Hence some possible confusion afterward.