“The History of Jefferson County, Wisconsin”, published: Chicago: Western Historical Company. 1879. EDWARD McMAHON, cashier of the Jefferson County Bank, Jefferson; was born in Canada, June 2, 1834, and came to Watertown, Jefferson Co., with his parents in 1849; he was with his father in the mercantile business till 1852; then went to California, returning in 1855 to Madison, and was in the Comptroller’s office, under J. C. Squires, till 1859, when he came to Jefferson as cashier of the bank organized at that time with William M. Dennis as President. Thomas McMahon, father of Edward, was in the mercantile business in Watertown till his death in 1854. Edward M. has served as Deputy County Treasurer several years; has also been Commissioner of the Public Debt for Jefferson since 1867; was Alderman and President of the Council in 1878. Married Mary E. Dennis, daughter of William Dennis, May 20, 1861; she was born May 20, 1843; they have six children – Laura D., William, Edward, Thomas, Charles and Mary, aged 16, 14, 11, 8, 5 and 3 years, respectively. Mr. M. belongs to the Catholic Church. Submitted by: Linda Pingel (LPingel@worldnet.att.net)