Niskayuna – Peter DeMarzio, 58, passed away suddenly at his home, Saturday November 20, 2021. Peter was born in Niskayuna the son of Lou DeMarzio and the late Helen (nee Dzengelewski) DeMarzio and was a lifelong resident. He graduated from Niskayuna High School and earned his Bachelor's Degree in Electrical Engineering from Union College. Peter went on to work for New York State Office of General Services for more than 30 years, retiring in 2018. He was an amateur inventor, avid reader and loved crossword puzzles. Pete could often be found following the stock market trends and keeping meticulous notes about what was going on with the market. He enjoyed time at the ocean, especially on Cape Cod and time playing poker with his buddies Mark Cazer and Matt Ambrose. Over the years, Pete persevered over many obstacles and even learned to ski. In addition to his dad, Peter is survived by his loving wife of 34 years Grace DeMarzio (nee Favata), their son Lou (Jen) DeMarzio, siblings: Lou Ann (Dick) Aceto, Laurie (Bruce) Skala and Mark DeMarzio. He is also survived by many nieces and nephews, cousins and Aunts and Uncles. Peter's funeral service will be held Wednesday 1:00 pm at Daly Funeral Home, 242 McClellan St., Schenectady. Calling hours will precede the service from 11:00 am to 1:00 pm at the funeral home. Interment to follow the service at Most Holy Redeemer Cemetery, Niskayuna. In lieu of flowers, memorial contributions may be made to Union College Electrical Engineering Department.