Cephas Barker Mark (July 31, 1872[1] – January 5, 1942[2]) was a druggist and political figure in Saskatchewan.
He represented Rosetown in the Legislative Assembly of Saskatchewan, from 1912 to 1917, as a Liberal.
In 1904, Cephas Barker Mark married Elizabeth Edith Swain in Mariposa Township, Ontario.
[4] The 1906 Census shows Mark living in Minnedosa, Manitoba.
[5] The 1911 Census of Canada shows Mark working as a druggist in Rosetown, Saskatchewan.