Family tree▼
"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MS9R-8PP : accessed 14 Aug 2013), Egbert Boes, 1900.
"United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MW3H-SHK : accessed 14 Aug 2013), Harmina Boes in entry for Egbert Boes, 1880.