Robert Witt Hoy. Age 89. January 17, 2022. Beloved husband of the late Lillian for 54 years. Loving father of Robert S. (Kristin) Hoy and Thomas Hoy. Cherished grandfather of Lisa and Elizabeth. Loving brother of Carol and Sharon. Devoted principal and teacher at Troy Public schools. Family has requested private services. Memorial contributions may be made to Grace Centers of Hope, 35 E. Huron St., Pontiac, Michigan, 48342.