John O. Collins, Jr. age 77, of West Mifflin, died September 23, 2020, at home.  Born March 28, 1943, in Pittsburgh, he was the son of the late John O. Collins, Sr. and Anna (Phlor) Collins and the husband of Barbara Collins.  John worked as a machinist starting out at Heppenstall  Steel and retiring from Jackson Gear Company in Etna.  He enjoyed yearly trips to Las Vegas with Barbara and watching and feeding the birds outside his home.  He was a life long Steeler fan who listened to Classic Rock and Classical music.  He leaves a legacy of taking pride in your work and always giving it your best effort.  In addition to his wife, he is survived by sons, John and James Collins, and sister, Beverly Weimskirch.  Services will be private.  Arrangements were entrusted to Willig Funeral Home & Crematory.  Condolences and memories may be shared at www.willigfuneralcremationservices.com