The following data is extracted from Historical and Biographical Sketches of Sac County, Iowa - Sac City.
Henry Wilson, sheriff, was born in St. Lawrence County, N.Y., in 1841; moved with parents in 1851, to Dundas County, Canada West. In 1869 he moved to Clinton, Clinton County, Ia., and engaged in contracting and building; thence to Sac county in the autumn of 1875 and followed same business. He was elected to his present office in the autumn of 1881 and moved to Sac City in Jan., 1882.
Source: Historical and Biographical Sketches of Sac County, Iowa - Sac City