"United States Census, 1910," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M2YW-P86 : accessed 16 Oct 2012), Louisa Vanvickle in household of Jacob M Vanvickle, Craig Ward 1, Holt, Missouri; citing sheet 4B, family 70, NARA microfilm publication T624, FHL microfilm 1374797.