He was born in Milton, to artist parents Ray and Louise Ewing, and raised in Easthampton, with younger sister, Louisa.
A student at Williston Academy, he enlisted in the Navy in 1944, serving in a U.S. PT boat squadron in the Philippines as a radar man.
An early ski racer, Mr. Ewing fractured his leg after the war ended on Mt. Tom.
He entered Rhode Island School of Design in 1947, where he met Mim; they married in 1947. He graduated from RISD in 1952 with a degree in illustration.
He and his wife moved to Berlin in 1959, where he served as Scout leader, ski instructor, parade float designer, auction coordinator, conservation commissioner and on the Planning Board. He studied math at Worcester State College and worked 32 years as plastic design engineer for Chu Associates in Littleton.
He is survived by his wife, Mim; his daughter, Brenna; his grandchildren Sarah, Tyler and Blais and his wife, Denielle; and his grandson, Edric.