Albert Bigelow Paine,
Mark Twain: A Biography. Volume II, Part 2…
“ It was on the 11th of December, 1897, something more than a year after the death of Susy, that Orion Clemens died, at the age of seventy-two. Orion had remained the same to the end, sensitively concerned as to all his brother's doings, his fortunes and misfortunes: soaring into the clouds when any good news came; indignant, eager to lend help and advice in the hour of defeat; loyal, upright, and generally beloved by those who knew and understood his gentle nature. ”
