Delmar, NY – R David (Dave) Kissinger, Ph.D., FAClinP,  of Delmar, New York, passed away peacefully on Tuesday, January 3, 2023, surrounded by his three children.  Born May 12, 1935, in Chicago, Illinois,  Dave was the son of the late Doris (Winegar) Kissinger and Richard D. Kissinger.  His wife of…