Sugar Creek Township was officially organized July 3, 1848. The first
settler, John Cox, built a cabin on the bank of the N. Skunk River. He later
moved to Story County. The first permanent settler were James McDowell,
William English and Conrad Swaney.
Searsboro was platted in 1870 and had a post office. There was a stop on
the northbound Underground Railway just south of Searsboro. Coal was mined
along the North Skunk. The Central Railroad was built through the township in
1870.
The churches in the township are the Friends Church in Searsboro, and the
West Liberty Church of Christ. There is a cemetery next to the West Liberty
Church. Other burial sites include a Sac-Fox burial ground west of Searsboro,
and a Negro cemetery near the Mahaska County line. Burials were made on a
hilltop overlooking the junction of Sugar Creek and the N. Skunk River in the
southernmost part of the township.