Richard Barnes Mason (January 16, 1797July 25, 1850) was an American military officer who was a career officer in the United States Army and the fifth military governor of California before it became a state. He came from a politically prominent American family and was a descendant of George Mason, a framer of the U.S. Constitution and father of the Bill of Rights. Gen. Mason is especially important to the history of California, because as military governor of the occupied territory, he wrote the official report that led to the California Gold Rush. Mason was "an aristocratic Virginian, a large portly man, six feet in height. He possessed all the peculiarities of a Southerner, accentuated," but he was known to have confined Jefferson Davis to quarters, who was under his command. A Lt. James Abert described him so, "It would be presumption in me to speak of so accomplished and well known an officer; but I cannot refrain from expressing my grateful sense of the kindness and hospitality with which we were received and treated by himself and his amiable lady, and indeed, by all the officers and ladies attached to the command." Early life "Richard Barnes Mason, born in Fairfax County, Virginia, January 16, 1797, was the son of George Mason and Elizabeth Mary Ann Barnes Hooe, who were married April 22, 1784." His grandfather was famous founder George Mason. Richard Barnes Mason inherited a considerable estate, consisting mostly of land and enslaved men and women. Upon the death of his father, he and his siblings frequently squabbled over the division of the estate and the profits made by selling enslaved men and women. In 1823, Richard complained to his brother George that "I wish you would make some exertion to pay me for Tom Clarke [an enslaved man whom the family sold]. It is now six years since you sold him, and I have not yet received a cent. It is not right that, you should, who inherited half my father's fortune, withhold from me, who got none, what is so justly my due." Like so many other enslavers and prominent Virginians, Mason's wealth was heavily dependent upon the labor and bodies of the people he held as slaves. Military career Mason was commissioned in the Army in 1817, to be stationed in the Mississippi Valley and the Great Lakes area. While serving, he frequently speculated in land