Robert Carleton Foyle

Robert Carleton Foyle (Bob), 93, passed away peacefully December 3, 2025. Bob was born October 19, 1932 in Chicago, the son of the late James and Margaret Foyle.
Bob graduated from Aspinwall High School and studied Mechanical Engineering at the Pennsylvania State University. His studies were interrupted when he was called into service, where he proudly served his country in the US Army Corp of Engineers at the tail end of the Korean Conflict. Upon his discharge, he resumed his studies at Carnegie Mellon University.
On March 19, 1955, he married the love of his life Margaretta (Peg) Weinfurther. Bob was a devoted husband and father and together they raised 3 children, Andrew, Lisa, and Douglas.
Bob and Peg moved the family to Zelienople in 1964 as Bob began his long and successful engineering career at the Herman Corp designing and building casting machines for the foundry industry. Bob was instrumental in developing V-Process casting technology, and in 1990 moved to Lansing, MI to work for Roberts-Sinto. He retired in 1994 as President of Roberts Sinto and moved back to Zelienople.
Bob was active in the community, serving on the Zelienople Borough Council, the Water Authority, and the Zelienople Rotary Club.
In retirement, Bob utilized his engineering skills in woodworking, designing and building many heirloom items for his family and friends. He was particularly proud of the kaleidoscopes he made for his grandchildren. Sadly, macular degeneration robbed him of his eyesight and he had to give up woodworking. He always spoke longingly of making a couple more kaleidoscopes for his great grandsons.
Bob and Peg enjoyed traveling. They traveled several times to Europe, Japan, and many destinations throughout the US. Bob was always partial to Japan, having worked with Japanese colleagues before retirement. They particularly enjoyed being hosted by a close colleague on an extended guided trip throughout Japan.
One of Bob's greatest passions, besides his family, was the Laetus Club Island in northern Ontario. Bob and Peg spent many summer vacations enjoying the peace and tranquility on the lake. A 'perfect' day in camp started with a few hours of fishing, followed by puttering around with one of the endless maintenance projects around camp. Happy hour began at 4:00 consisting of a refreshing plunge into the lake and an equally refreshing adult beverage. The day ended listening to the loons while watching the most magnificent sunsets anywhere on earth. Great times!
Bob was preceded in death by his parents, his in-laws, Louis and Dorothy Weinfurther, his daughter, Lisa, and sister, Patricia.
Left to cherish his memory is his loving wife of 70 years, Peg, his sons, Andrew (Deb) of Girard, PA, and Douglas of Zelienople, his son-in-law, John Friedrich, and his grandchildren, Dr. Sarah Foyle (Tim Gallagher), Kelley Oliver (Dylan), Lauren Friedrich, and Leo Friedrich. He is further survived by great grandchildren, Aiden and Conor Gallagher.
The family wishes to thank the many doctors, nurses and aides from Cranberry Place, Passavant Hospital and Mercy Hospital who treated and comforted Bob in his final days. Special thanks go to Dr. Ricardo Raymundo of Steel City Internal Medicine and Dr. Karl Anderson of the Cardio-Vascular ICU at Passavant.
Calling hours will be from 2:00 to 4:00pm and 6:00 to 8:00pm on Monday, December 8, 2025 at Boylan Funeral Home, Inc., 324 E. Grandview Ave., Zelienople, PA 16063.
A memorial service will be held 11:00am, on Tuesday, December 9, 2025 at the funeral home. Burial will be private at English Lutheran Church Cemetery in Zelienople.
The family suggests memorial donations be made in Bob's honor to the American Heart Association, PO Box 840692, Dallas, TX 75284 (https://www.heart.org/). To send flowers to the family or plant a tree in memory of Robert, please visit our floral store.