He first settled in Beloit, Wisconsin in 1849 after having walked some 600 miles before arriving there.
Plummer died after a surgical procedure[3] on March 21, 1897.
Plummer served three terms in the Assembly.
He was appointed Pepin County, Wisconsin Judge in 1861 and was elected as such in 1862, 1865, 1869, and 1873.
Other positions he held include Chairman of the Waterville Town Board and of the Pepin County Board.