Joseph S. Foster, 85, of Butler passed away on Wednesday, October 6, 2021. He was born in Pittsburgh on March 2, 1936, to the late Lawrence and Loretta Foster. Joseph worked as a welder for Dravo for most of his career and later retired from Goss Gas. He was a member of St. Andrew’s Roman Catholic Church. Joseph enjoyed boating. He was known to be very family oriented, hardworking, and kind. Joseph also built 3 houses for himself and his family. He was the beloved husband of Nancy Foster since their marriage in 1956; father of Christine (Perry) Robinson, Joseph (Nancy) Foster, Gerard Foster, Thomas (Kim) Foster, Charles (Sue) Foster, Paul (Renee) Foster, Jane (Chris) Ott, Peter (Stephanie) Foster, Daniel (Donna Jean) Foster, and Jill (Chris) Vari. Joseph is also survived by 20 grandchildren, 15 great grandchildren, and 1 great great grandson. He was preceded in death by his 7 siblings. Friends received on Sunday, October 10, 2021, from 2-4 & 6-8 PM in the SPENCER D. GEIBEL FUNERAL HOME & CREMATION SERVICES, 140 NEW CASTLE RD, BUTER, PA 16001. WWW.SPENCERDGEIBEL.COM. A Mass of Christian Burial will be held Monday, October 11, 2021, at 11 AM in St. Andrew’s Roman Catholic Church. Burial will follow in St. Peter R.C. Cemetery.