Orion Clemens was the first and only Secretary of the Nevada Territory. His younger brother Samuel Langhorne Clemens became a famous author under the pen name Mark Twain. Wikipedia
Born: July 17, 1825, Tennessee
Died: December 11, 1897 (age 72 years), Keokuk, IA
Children: Jennie Clemens
Siblings: Henry Clemens, Pamela Clemens, Benjamin Clemens, and more
Grandparents: Pamelia Goggins and Samuel R. Clemens
Great-grandparents: Jeremiah B. Clements, Rachel Clark Moorman, Elizabeth Clements, and more
Nephew: Langdon Clemens