Mitchell started the Edward H. Mitchell Company in 1895. His company issued about 4,000 different post card scenes between 1898 and 1915, which included 32 postcards illustrating 14
California missions. Post Cards were often published on yellow canary colored paper. Many post cards were distributed by other California publishers. His company was located at 225 Post Street before the
1906 San Francisco earthquake, which destroyed the building. After 1906, he built a plant on Army Street where he published postcards. From the Army Street location he published thousands of divided back cards, which had views of San Francisco, the
Philippines, the
Hawaiian Islands, comics, and early exaggerations of California fruits and vegetables. Mitchell bought the postcard business of California scenes and one set depicting
Yellowstone National Park published by Albert Kayser of Oakland in 1898. He printed postcards for a number of other publishers, including for photographer
Charles Roscoe Savage, and Michael Rieder of Los Angeles. In December 1899, Mitchel published the
California View Calendar, which included 6 views of scenes in the state, the
Cliff House,
Moss Brae Falls,
Mount Shasta,
Yosemite National Park,
Mission Santa Barbara, and the
California State Capitol. The price was 75 cents. Oscar Newman, of the Newman Post Card Co., worked with Mitchell for the February 1911, formation of Exposition Publishing Co., which was an organization that captured the souvenir post card business for the 1915
Panama–Pacific International Exposition. ==List of published works==