[1] He was owner of the T. J. Hayes Printing Company which published plays and other works related to the theatre.
[1] He was educated in New York City's public schools and pursued a business career, working as a clerk and manager in several different firms.
Upon leaving the legislature Ahearn was appointed to a clerkship in the New York City Police Court.
[9][10] In 1909 the New York Court of Appeals ruled that the aldermanic election that returned Ahearn to office following his removal by Hughes was illegal.
Their son Edward J. Ahearn (1891–1934) was elected to the New York State Assembly as a representative for the fourth district; succeeding his father in that position in 1921.