Sugar Grove Township History from
the History of Mercer County, 1888
Sugar Grove Township History
from the History of Mercer County, 1909
Census
1840
Census - Sugar Grove was still a part of Salem
Township and
West Salem township (Greene Township had not been formed yet.)
1850
Census - Sugar Grove was still a part of Salem
Township and Greene Township
1870
Census
1880 Census - search at
familysearch.org. Select Pennsylvania, then Mercer,
then Sugar Grove