J Koop Brouwer, Oct 1843
Burtze Brouwer, Sep 1853
"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MSMB-P87 : accessed 17 Oct 2013), J Koop Brouwer, ED 90 Precinct 2 Grand Rapids city Ward 12, Kent, Michigan, United States; citing sheet 24B, family 511, NARA microfilm publication T623, FHL microfilm 1240723.