This certified monthly flight summary from September 1944 identifies the logbook's owner as 1st Lt. P.M. McAleer, USMC, of VMF-441, the "Black Jacks," part of the Fourth Marine Aircraft Wing, Fleet Marine Force. The entry, countersigned by squadron flight officer Capt. Robert Lee Green, documents 597.8 total flying hours accumulated by that point in McAleer's Marine Corps aviation career. Project: 218037