Beard, Cyrus was born on August 13, 1850 in Venango Company, Pennsylvania, United States. Son of Thomas and Mary (McKinly) Beard.
Bachelor of Laws, State University of Iowa, 1874.
Began practice of law at Washington, Iowa, 1874. Removed to Harlan, Iowa, 1878, and to Evanston, Wyoming, 1890, practicing law there, 1890-1904. Justice Supreme Court, Wyoming, since 1904(chief justice, 1911-1913).
Reëlected 1912, for term expiring 1921.
Married Nora E. Wilson, September 25, 1875 (died 1893). Married second, Frances B. Birkhead, July 22, 1896.