"United States Census, 1860," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M4FL-247 : accessed 10 January 2015), Margaret Rystra in household of Bauke W Rystra, Jackson Township, Elkhart, Indiana, United States; from "1860 U.S. Federal Census - Population," Fold3.com; citing p. 75, household ID 489, NARA microfilm publication M653, National Archives and Records Administration, Washington, D.C.; FHL microfilm 803,256.