Stanley John, age 74, of Mahwah, passed away peacefully at home on November 8, 2017. Stan will be deeply missed by his devoted wife of 33 years, Kathy (nee Marousek), and his beloved daughters, Rebecca and Suzanna. Stan was a man of many interests and talents. His intellectual curiosity made him a lifelong learner. He was a proud alumnus of Columbia University, receiving both undergraduate and graduate degrees there. He also received a Masters of Library Science at Rutgers University, which led to a career as a systems and technical services librarian and consultant. In the course of his varied career, Stan managed large library automation systems including Westchester Library System and Ramapo Catskill Library System. He belonged to a number of professional organizations and served as a board member on the Southeastern New York Library Resources Council. Outside of work, Stan was an active community member. He volunteered at the Mahwah Museum and was a former chair of the Buildings and Grounds Committee at Immaculate Conception Church in Mahwah. Friendly by nature, his loss will be felt by many. Stan was born in Lorain, Ohio to the late John and Mary (nee Lavriha) Ploszaj. One of five siblings, Stan is survived by his brothers Jan and Bill and sister Marilyn Nemeth. He was predeceased by sister Nancy Kuhar. Visitation will be held on Sunday, November 12, 2017 from 2 – 5 p.m. at the Vander Plaat Funeral Home, (vpfh.com), 257 Godwin Ave., Wyckoff. The funeral mass will be celebrated on Monday at 10 a.m. at Immaculate Conception Church, 900 Darlington Ave., Mahwah. Interment will follow at George Washington Memorial Park in Paramus. In lieu of flowers, the family requests donations to HUMC Foundation, 160 Essex Street, Suite 101, Lodi, NJ 07644. In the memo section, please indicate the John Theurer Cancer Center.