Photograph of Joseph Sweetman Ames Member of Johns Hopkins University graphic and pictorial collection Model Image AbstractPortrait of Ames.
Photograph of William Dana Hoyt Member of Johns Hopkins University graphic and pictorial collection Model Image AbstractPortrait of Hoyt at approximately 39 years old.
Photograph of John Frederick Mohler Member of Johns Hopkins University graphic and pictorial collection Model Image AbstractPortrait of Mohler at approximately 50 years old.