Found some more on this possible connection. Dobbins was a Colonel not a General.

Colonel Archibald Dobbins who commanded the 1st Arkansas Cavalry, C. S. A. Their flag can be seen here http://dixierising.com/flags/tn/polks_corps_flag.phtml, with the caption: "1st Arkansas Cavalry- Old State House Museum, Little Rock, Arkansas (Not a Polk's Corps flag at all - but a variant of a pattern issued in the Trans-Mississippi theater. -Greg Biggs, 6/21/04)"

Ed