A claim was filed by Lucy J Plaster on June 22, 1864. Her affidavit states that Benjamin F Plaster entered the service at Lawrenceville, Ga on July 31, 1862. It also states that he died "leaving his widowed wife." No children are mentioned on the affidavit.

Unless his body was retrieved by family, burial is likely in the Montgomery White Sulphur Springs Cemetery, Montgomery County, Virginia, USA; all soldiers buried there are in unmarked graves.