In the 1850 US Census for Nepeuskin, Winnebago County, Wisconsin the family of George S. Barnum was enumerated as follows:
Dwelling #1253; Family #1277
George Barnum, 30, M, Farmer, Real property $1,000, b. Vermont
Mary P. Barnum, 28, F, b. Vermont
Mary Barnum, 6, F, b. Vermont
Jerome Barnum, 4, M, b. Vermont
M. W. Kinsly, 30, M, Merchant, b. Vermont
Rosanah Kinsly, 20, F, b. Indiana
Miranda Kinsly, 2, F, b. Vermont
[Note: M. W. Kinsly was probably a brother of Mary P. (Kinsly) Barnum. The surname also appears as Kingsly].
From the 1881 History of Northern Wisconsin, Illustrated, page 1187 - George S. Barnum, retired, Winneconne; first settled in Fond du Lac County, near Green Lake, Wis., in 1847, and engaged in farming, but being brought up a merchant, soon gave up that occupation, and, after a brief residence there, settled on Democrat Prairie, Winnebago Co., where, after a short time, he moved to Waukau, same county, and engaged in milling under the firm name Barnum, Parsons & Daniels, continued several years, then firm was changed to Barnum, Bean & Wood and continued until 1868, at which time, he moved to Winneconne, where he has since been engaged in real estate, loaning money, etc. He was born in Monkton, Addison Co., Vt., Sept. 26, 1819. He was married at the latter place, Jan. 6, 1842, to Miss Mary P. Kinsley, who was born and reared in the same place. They have two children - Mary E., now married to Mr. E. W. Enos, and living in Vinland, Winnebago Co.; Jerome W., married and living in Winneconne. Mr. Barnum was the first Town Clerk of Nepeuskum Township. He has served two terms in the Wisconsin State Assembly, also two terms in Senate.