NORTH BERGEN, NJ – (April 8, 2026) Harry Hennessey, a dedicated trade union leader from Long Island, New York, who served as Secretary-Treasurer of the United Marine Division, Local 342, International Longshoremen’s Association, and was a Vice President and Executive Board Member of the Atlantic Coast District, ILA passed away on Tuesday, April 7, 2026. Enjoying a long and distinguished maritime labor career, Harry Hennessey was a Captain and Mate with Moran Towing and Transportation and a Union Business Agent at the Town of Huntington, New York.
He came from a large Irish-American family, all with deep roots in the trade union movement. Harry’s brother, William Hennessey, is currently an International Vice President and President of United Marine Division, Local 342, ILA.
“The ILA is deeply saddened by the passing of our Brother Harry Hennessey,” said International ILA President Harold J. Daggett. “Harry was the epitome of a dedicated and fiercely loyal union leader who served his membership with distinction. His accomplishments on their behalf were great and his memory will endure.”
“I am heartbroken to lose one of my most dedicated and intelligent Vice Presidents,” said Michael J. Vigneron, President of the Atlantic Coast District. “Harry was elected ACD Vice President in 2019. He was an asset to our District and our ACD membership.”
Harry Hennessey leaves behind his wife, Maryann; daughters Siobhan and Deirdre; son-in-law Jordan and granddaughters Shannon and Claire.
Funeral Services for Harry Hennessey will be as follows: A Wake will be held on Sunday, April 12, 2026, at Robertaccio Funeral Home, 495 Main Street, Center Moriches, NY. 11934. A Funeral Mass will be celebrated on Monday, April 13, 2026, at 100:45 am at St. John the Evangelist Roman Catholic Church, 25 Ocean Avenue, Center Moriches, NY 11934.