By cavis , 12 June 2012 Image People John Henry Herring Date before 1868 Source Collection Gladys Roberson Avis Type of Original Ambrotype in a broach 1x1.5 Description John Henry HerringHe died in 1868.A large drawing was made from this ambrotype and is in the home of David M. Avis of Houston (in 7/2001). Tags ambrotype ancestor Herring portrait