1861: May 11-July 11: The Journey West to Minnesota and back.
Saturday, June 15, 1861: Thoreau and Mann were in St. Paul.
Sunday, June 16
to Saturday, June 22, 1861: They accompanied a "pleasure excursion"
with the steamboat, Frank Steele. They left St. Paul and sailed
up the Minnesota River to the Lower Sioux Agency at Redwood, Minnesota; then
turned around and came back to St. Paul.