John (Jack) D. Winninghoff died peacefully on March 8, 2017, at Kaplan House in Danvers, Mass. Son of Mary D. and Wilford J. Winninghoff, Mr. Winninghoff was born on November 13, 1924, in Orange, N.J. He attended the South Orange public schools and graduated from the Massachusetts Institute of Technology in l948. During World War II, he served in the 44th Bomb Squadron, 40th Bomb Group, of the U.S. Army Air Corp. After pilot training, he flew B-29's from Tinian to Japan. In l950, he was recalled to the USAF. His last duty before returning to civilian life was as an R&D Contracting Officer at W-PAFB. In September 1950, he married Louise Debevoise.
Over the next 20 years, Mr. Winninghoff worked for several defense oriented companies in the electro-optical equipment field dealing primarily with the government on various R&D projects usually involving large optics. In 1964, he married Pamela Burton. In spring of 1974, having learned of a patent regarding explosive forming of sailboat hulls, he obtained a license and formed a company to develop the technology. Experimenting was abandoned 15 months later. In March 1976, Winninghoff Boats, Inc. was incorporated, first to build lobster boats. The company, located in Rowley, Mass., has custom built 221 aluminum boats including mostly research vessels, fire boats and fishing boats, as well as pleasure boats.
Jack was proud of his family, fond of his northeastern Massachusetts "family," his Montana roots, telling a good joke to hear others’ laughter, debating current politics, reading of history and business, all aspects of tennis, the Boston pro-teams successes, and hoisting a toast.
Mr. Winninghoff is survived by two daughters and two sons, Mary Ellen (Ellie) Winninghoff of Seattle, Wash., James Dawson Winninghoff of Seattle, Wash., Ann Winninghoff Carroll of Raleigh, N.C., and Mark Wilford Winninghoff of Easton, Maine. In addition, he is survived by James' wife, Anne Derome; Ann's husband, John Carroll; Mark's wife, Denise Graziano; and by five grandchildren, Samuel Winninghoff, Erin Leigh Carroll, Hayley Winninghoff, Aidan James Carroll, and Christopher Winninghoff.
A party of family and friends will be held in April to celebrate Winninghoff's life.
Published on  March 14, 2017