84. Beloved husband of Miriam "Mimi" (nee Silberman). Loving father of Michael (Michele Pollak), Ellen (James Cohen) and Richard (Dana Wahrenbrock) Letchinger. Adored grandfather of Riva, Will, Hannah, and Daniel. Cherished brother of Donald (late Peggy) Letchinger. Dear brother-in-law of Allan David (Joan) Silberman. Treasured uncle of many. Chicago Sinai Congregation. Memorials to Chicago Sinai Congregation or the Northwestern Memorial Hospital Foundation, Galter Pavilion. The Goldman Funeral Group.