LEIDNER, Michael J. on January 2, 2017 of Selden, LI. Loving fiancé of Danielle McGary. Adored father of Gabrielle Leidner. Beloved son of John and Barbara Leidner. Cherished brother of Diane Attianese and her husband Richard. Dear uncle of Madison and Reagan Attianese. Reposing at O.B. Davis Funeral Homes 4839 Nesconset Highway, Port Jefferson Station, LI. Visitation on Wednesday, January 4th from 2-4 and 7-9 PM. Funeral Mass Thursday at 9:45 AM at St. Gerard Majella R.C. Church in Port Jefferson Station, LI. Interment to follow at Holy Sepulchre Cemetery.