Orion Clemens
Orion Clemens was the first and only Secretary of Nevada Territory. He is best known through his relationship to his younger brother Samuel Langhorne Clemens, known by the pen name Mark Twain.
Mary Eleanor Mollie Stotts married Orion Clemens in 1854. Their daughter, Jennie Clemens, was born in 1855 and was beloved by her uncle Samuel . When the family moved to Nevada, Jennie attended Sierra Seminary in Carson City about which Twain wrote a piece after visiting her there. Jennie fell ill to spotted fever on January 29, 1864 and died of meningitis, a complication of the illness, on February 1, 1864. Her parents and Twain had stood vigil around her bedside until she died, praying the Lords Prayer with her asking for recovery. The couple did not have any other children.
Source: Wikipedia