Jonathan G. Callahan

Jonathan Gardner Callahan was an American politician. He was member of the Wisconsin State Assembly.

Biography
Callahan was born on November 2, 1823, in Andover, Massachusetts. He attended Phillips Academy. A Presbyterian, Callahan married Maria S. Jones on April 19, 1849. They had two children.

Career
Callahan was a member of the Assembly during the 1875 session. Additionally, he was President (similar to Mayor) of Eau Claire, Wisconsin. He was a Republican.