If you were assigned to Company A, 266th Quartermaster Battalion (Direct Support), boarded the USNS General Nelson M. Walker 31 May 1966 Port of Tacoma, arrived in Republic of Vietnam some 3 weeks later, and "inactivated" on 20 July 1966, what was your new unit designation or new unit of assignment? Research suggests, that Company A, 266th offloaded in Qui Nonh 22 June 1966, while HHC 266th, and Company B, 266th Quartermaster BN (DS) offloaded at Vung Tau further south on 23 June 1966. Further research suggests, that Company A, 266th was "inactivated" on 20 July 1966 as was Company B, 266th (located in Long Binh, RVN).
It is thought or suspected (not proven and the reason for this post) that on 20 July 1966 inactivation, Company A, 266th Quartermaster Battalion (DS) might have been re-designated, and/or activated as one of the following supply entities: 163rd Supply Company (General Support) in Saigon -- 221st Supply Company (Direct Support) in Chu Lai -- the 226th Supply and Service Company (Direct Support) in Tuy Hoa -- the 229th Supply and Service Company (Direct Support) in Long Binh -- or last, the 463rd Supply Company (General Support) in Qui Nonh.
These five listed Supply unit entities are the only other Company Supply level units "activated" specifically in Vietnam on 20 July 1966 (per Order of Battle and COSTAR Directive), and who have no Stateside (CONUS) designation of origin.....the same as Company B, 266th Quartermaster Battalion (DS), which originated in Fort Lewis, Washington...and was "inactivated" on 20 July 1966 Long Binh, RVN, and became ("activated") as the 228th Supply and Service Company (Direct Support) the same date.
Of the five entities listed, it is doubtful that 163rd Supply Company (GS) was formerly Company A, 266TH QM BN (DS). The same holds true for the 229th S&S Co (DS), leaving the remaining three Companies formed as distinct possibilities, they being; 221st S&S Co (DS), 226th S&S Co (DS) or 463rd Supply Company (GS). It would seem, that the 221st and 226th S&S Co (DS) units have the most probable possibility, but there are no proofs to establish the matter.
Note: HHC (Headquarters and Headquarters Company) 266th Quartermaster Battalion (Direct Support) was re-designated as HHC 266th Supply and Service Battalion (Direct Support) in Long Binh, 20 July 1966, their origin stated as Fort Lewis, Washington, per Order of Battle listings.
Any data or information regarding what became of Company A, 266th Quartermaster Battalion (Direct Support) on 20 July 1966 would be appreciated.