There is a reference to Ira Ames in the "History of Dane County, Wisconsin - 1880" under the biographical sketches for Town of Oregon. The biographical sketch is for J.N. AMES. Here's the reference:
J(ohn).N. AMES, was born July 7, 122, in Steuben, Oneida Co, NY; his grandfather, Nathaniel AMES, born April 25, 1761, in New Hampshire, was a farmer and a Protestant M.E. preacher; his wife, once Sarah HALL, born in Albany Co, NY, was the mother of eleven children. Their son, David H. AMES, born near Albany, married Betsy NORTON, of Herkimer Co, NY, and granddaughter of the Revolutionary Gen Norton; David H AMES served through the war of 1812, is now a pensioner, and lives, aged 88, near Trenton Falls, NY; his wife is aged 81, and both are vigorous. John N, their son, was the only one of their eleven children to come to Wisconsin. Nathaniel AMES, with his wife and five children (Frances, Jonathan, Naomi, Persamus and Ira) came to rural Oregon (Sec 22),Dane County in the summer of 1845. Nathaniel moved to the village of Oregon in 1860; and died there in August 1863; his wife, Sarah, died July 1851. There is no other mention of Ira AMES.
The "History of Dane County-1906" has more information about Nathaniel, David H, John N, Francis M AMES and their families, if you are interested.