William Joseph “Bill” Ahern, 80, of North Haven, passed away on March 15, 2018 after a long illness. Born in New Haven on December 14, 1937 to the late James and Mary Walsh Ahern. Bill will be lovingly remembered by his wife, Catherine Early Ahern; his brother, John Ahern; and his sister-in-law, Mary Ellen Ahern. He was also the beloved stepfather to Robert Dietter, Jr., Kristin Henderson, Craig Dietter, & John Dietter; devoted grandfather to Robert III, Tyler, Morgan, Brooke, Jaden, & Ian Dietter and Daniel, Caroline, & Kate Henderson, and loving uncle to many nieces & nephews. Predeceased by his siblings, Mary Rowe, Julia Willett, Margaret McMahon, Eileen Stackpole, James, Stephen, & Timothy Ahern. Bill was cherished by many close friends and was well-known for his wonderful sense of humor, his sharp intellect, charm, and generosity to all. He received his B.S. and M.S. from the University of New Haven. He was a Lieutenant in the New Haven Police Department, having served honorably for 25 years. After retiring from the police department he became Chief of Security at Quinnipiac University for 10 years. Bill’s family would like to share their gratitude and appreciation to Franciscan Home Care for their unwavering support, compassion, and kindness. Funeral from BEECHER & BENNETT, 2300 Whitney Ave., Hamden on Monday, March 19th at 11:00 a.m., followed by a Mass of Christian Burial in Our Lady of Mt. Carmel Church at 11:30 a.m. Burial will take place in St. Mary’s Cemetery. Friends are invited to visit with Bill’s family on Sunday evening from 5:00 to 7:00 p.m. at the funeral home.

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  1. To all the family: So sorry for your loss. I always liked Billy and of course loved him as my cousin and felt so comfortable in his presence. He had a great sense of humor.

  2. To the Ahern family, I am very sorry for your loss. Mr. Bill was a special guy. I met Lieutenant Ahern as my instructor at New Haven Police Academy in 1978. He was honest and a man of integrity. He was a great communicator. Lieutenant Ahern was a professional. He taught us how to really be cops. Later, Billy took us on field trips, introducing us to Ted’s steamed cheeseburgers, McSorley’s Old Ale House in NYC, and several more important locations. No one could laugh like Mr. Bill. I will miss him. He was a great friend. Thank you Lieutenant Ahern for your service to the city. God Bless you sir. Rest In Peace. J.D. Smith

  3. To the Ahern Family, So sorry for your great loss. Lt. Bill Ahern was a great supervisor and mentor. One of the .Old School. cops we all learned from well. Doing things the right way. He served with integrity and dedication. Rest in Peace and God Bless. Sincerely, Ed Ingraham

  4. Prayers out to all those who loved him. He was such a positive influence in my life and I hold all the memories with him so dear. His laughter was infectious and I will cherish our long intellectual conversations. May his soul be at peace. Love always, Your niece and Goddaughter Carolyn

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