Dennis M. Keefe   Of Lancaster, NY October 12, 2023.  Beloved husband of Diane (Block) Keefe; loving father of Matthew (Patricia) Keefe and Mindy (Buford Lemon) Keefe; dearest grandfather of Sam, Sadie, Penelope and Zac; son of Dorothy Socie; brother of Kathleen Ryder, Mary (Jack) Hinners; brother in-law of Donald (Claire) Block and Sharon (George) Roller; also survived by nieces and nephews.  A Mass of Christian Burial will be celebrated at Blessed Mother Teresa of Calcutta Parish 496 Terrace Blvd. Depew, NY Saturday October 28, 2023 at 10am.  No prior visitations, please assemble at church.  In lieu of flowers donation may be made to the City Mission.  Dennis was a teacher in the Lancaster Schools for over 30 years and a Lieutenant Colonel in the Army Reserves.  Share condolences at wendelandloecherinc.com