John P. Keenan of Northport, NY on October 13, 2023. John was a steamfitter with local 638 and a Navy Veteran. He is survived by his daughter Kathleen, grandchildren; John R. (Salina), John P. (Ashley) and Despo (Ryan) and great grandchildren; John A., Dylan, Baylor, Cassidy and John P. Reposing Tuesday 4-8pm at Nolan Funeral Home, Northport, NY. A Mass of Christian Burial will be celebrated Wednesday 10am at Our Lady Queen of Marty's RC Church in Centerport. Interment to follow at St. Charles Cemetery in Farmingdale with Navy Honors.