http://digicom.bpl.lib.me.us/ww_reg_...=PDFCoverPages
This site has a selection of postwar-era US unit and ship histories available for download in pdf format, including:
IX AFSC, 11th BS, 14th BW, 40th BG, 43rd BG, 54th TCS, 73rd BW, 74th TCS, 93rd BW, 100th BG, 308th BW, 316th TCG, 389th BG, 398th BG, 401st BG, 410th BG, 417th BG, 440th TCG, 433rd TCG, 445th BG, 444th BG (VH), 446th BG, 447th BG, 462nd BG (VH). 487th BG, 493 BG, 497 BG (VH)
VF-46, VPB-109