Elwood R. Ey Sr., 63, a retired accountant who was active in Masonic organizations, died Sunday in a hospital in Salisbury, Md., after a stroke. He was vacationing at the time he was stricken.

Mr. Ely was a Shriner and a member of Theodore Roosevelt Lodge No. 44 of the Masons. He was a member of Almas Temple, where he had been president and director of the Clown Unit, and also had been president of both the Uniformed Unit and the Screwballs.

He was born in the Panama Canal Zone and came to Washington at an early age. He was a graduate of Roosevelt High School and Benjamin Franklin University. He lived in Bethesda for more than 35 years before moving to Hyattsville about five years ago.

Mr. Ely was an accountant with area General Motors dealerships for more than 40 years before retiring in 1979. He spent about 35 years with Pohanka Oldsmobile and then seven years with Fields Buick in Hyattsville before tiring.

He served with the Army in the China-Burma-India Theater during World War II. He was a member of the Veterans of Foreign Wars.

Survivors include his wife, Jennie E., of Hyattsville; two daughters, Judith A. Ey of Alexandria, and Barbara E. Privette of Poolesville; three sons, Elwood R. Jr., of Silver Spring, Julian E., of Rockville, and William Terry Ey of Wheaton, and eight grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Philadelphia Unit Crippled Children's Hospital, or to one of the Shrine Burn Institutes.