H.D. Allen also appears in military records as D.H. Allen, and it appears he went by Dave Allen later in life. Allen was a private in the 2nd Regiment, Texas Cavalry State Troops. He enlisted on September 2, 1863 the same year the company was organized. His command saw brief guard duty in winter 1863-64 on the Texas Coast but did not participate in any major battles. On February 19, 1922 he was admitted to the Confederate Men‘s Home and he died May 5th of the same year.