1850 U.S. census, El Dorado County, California, population schedule, Dry Creek, p.. 852 (penned, recto), p. 427 (stamped, verso), dwelling 3, family 3, Wm Tatum household; digital images, Ancestry.com (http://www.ancestry.com : accessed 20 September 2011); citing NARA microfilm publication M432, roll 34.