"United States Census, 1850," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MXLG-W7V : accessed 24 March 2015), Catharine Roper in household of John Roper, Panola county, Panola, Texas, United States; citing family 253, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
"United States Census, 1860," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXFT-LBR : accessed 19 December 2015), Catharine Cooper in household of Wm Cooper, Beat No 8, Panola, Texas, United States; from "1860 U.S. Federal Census - Population," database, Fold3.com (http://www.fold3.com : n.d.); citing p. 123, household ID 821, NARA microfilm publication M653 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 805,302.