Black and white photogravure from the book "Niagara Falls Photo-Gravures from Recent Negatives of the Albertype Company, New York" by A. Wittemann, captioned “Cantilever Bridge," c. 1890-1892.
A photo of Captain D. C. Gates or Calvin Clark Gates. Calvin was husband of Elizabeth, the daughter of Joseph Burgar and Ann Rowley, and thus a sister of Tomas Sr.. This photo comes from an album of Thomas Sr..