During the course of his career, John T. Yearout operated as a daguerreian in Memphis and Nashville, Tenn., New York City, and Marshall, Texas. He was involved primarily in many of the business partnerships that originated with T.J. Dobyns.
He was first recorded in March, 1853, at 59 College Street, Nashville, Tenn. There he was part of the new firm of Dobyns, Yearout and Richardson (V.L.). The firm was also listed as stock dealers; Yearout was the only one of the three partners listed in the business directory, and indicated he was boarding at the Verandah Hotel. The partnership was recorded in Nashville in 1853 and 1854.
In Memphis in 1853, the partnership of Dobyns and Yearout was also formed; it was listed alternately as Dobyns, Yearout and Richardson, and operated at the corner of Main and Jefferson Streets as daguerreians and stock dealers. This partnership, too, was listed through 1854. Yearout returned to Memphis in 1859, when he was listed as a daguerreian without a business address, and boarding with Mrs. Mary Pierce.
He was also noted in 1855 as operating as a daguerreian in Marshall, Texas, with H.J. Yearout.
In 1860 he was listed as an ambrotypist on the third story of the Calhoun Block, southeast corner of Main and Monroe Streets. He was listed with H.J. Yearout with an ambrotype gallery and sewing machine depot. He lived on the southeast corner of Shelby and Vance Streets. The firm was alternately listed as Yearout & Co., daguerreians.
In April, 1854, Yearout was listed as a daguerreian in New York City, alternately with Dobyns & Co. or Yearout and Richardson. The gallery was located at 303 Broadway, and an advertisement indicated Yearout would stay only a short time before returning to Memphis. He continued to be listed at the New York gallery in 1855.