He served in the United States Army during the Spanish -- American War ( 1898 ) .
After law school , MacChesney founded a Chicago law firm , ultimately known as MacChesney and Becker , where he practiced law for the next five decades .
MacChesney served in the United States Army during the Spanish -- American War ( 1898 ) .
After law school , MacChesney founded a Chicago law firm , ultimately known as MacChesney and Becker , where he practiced law for the next five decades .