[1] Yarnell was born in Gratiot, Ohio, on June 20, 1837, and learned the printing trade in Zanesville in that state.
[2] In 1866 he moved south to Los Angeles, where he founded the Weekly Republican newspaper, which he later sold to a brother-in-law.
[1] Yarnell was a candidate on the Prohibition party ticket for an at-large Congressional seat in the 1882 election, but lost.
[3] In 1902, he was nominated by the Prohibitionists for a seat in the California State Assembly but campaigned unsuccessfully as an independent.
[1] Yarnell left an estate of about $50,000, the largest item being a 204-acre ranch in Buena Park, California, valued at $30,000.