He was a self-employed electrician and formerly worked for The Farrell Corp. in Ansonia for 14 years, Kerite in Seymour, and Peter and Paul in Naugatuck.
Mr. Hennessey attended Valley Forge Military Academy in Pennsylvania and was a graduate of Naugatuck High School.
He was a Harley Davidson enthusiast and a member of the Eagle Riders. He also enjoyed playing pool and driving his truck.
In addition to his devoted wife and parents, he leaves three sons, Justin Hennessey of Beacon Falls, Randall Hennessey and his wife Sherri of Palm Coast, Fla.; and Joseph Hennessey III of Beacon Falls; a granddaughter, Hannah Elizabeth Hennessey of Palm Coast, Fla.; a brother, Darrin Hennessey of Derby; four sisters, Doreen Elnitsky and Robin McKenna, both of Southbury, Lillian Smith and her husband Ted of Beacon Falls and Patricia Russo and her husband William of Woodbridge; and several nieces and nephews.
He is also survived by his mother-in-law, Ruby Murdock and her husband George of Holly Hill, Fla.; a brother-in-law, Joseph Oldakowski and his wife Teresa of Deltona, Fla.; and a sister-in-law, Kathy Yanosky and her husband Robert of Roxbury.
Family and friends may call 5 to 7 p.m. today (Friday), with a Memorial Service at 7 p.m. at the Ralph E. Hull Funeral Home, 161 West Church St., Seymour. Interment will be at the convenience of the family.