In 1837, he moved to the town of Spring Prairie, Wisconsin Territory and then settled on February 27, 1837, in Elkhorn where he was a farmer; he would remain there for the rest of his life.
He served as the town justice of the peace, as county clerk, treasurer and superintendent of the poor, and as a trustee of the Wisconsin School for the Deaf.
[3] As of 1854, he was one of the secretaries of the Walworth County Agricultural Society.,[4] a title he would hold for some time, although by 1880 he would be its treasurer[5] Latham was elected a member of the Wisconsin State Assembly for 1862, where he (a Democrat) replaced Republican Wyman Spooner.
[8] In 1870, he was the nominee for the 2nd Walworth County Assembly district (the Towns of Linn, Geneva, Elkhorn, La Fayette, Bloomfield, Lyons and Spring Prairie), losing with 620 votes to 990 for Republican Amzy Merriam.
[9] In 1879 he ran as both the Democratic and Greenback Party nominee for what was now Walworth's renumbered 1st Assembly district, gaining 710 votes to 941 for Republican Ely Bruce Dewing.