Clay Luther Jennison, 92, a retired government naval architect and marine engineer who had lived here since 1914, died of kidney failure Oct. 30 at Shady Grove Adventist Hospital. He lived in Gaithersburg.

Mr. Jennison was a native of Stella, N.Y., and was a 1914 graduate of the Webb Institute of Naval Architecture in New York City. After moving here, he spent a year as a civilian with the Navy's Bureau of Ships. From 1915 to 1947 he was a civilian architect with the U.S. Coast Guard. He then worked for the Military Sea Transport Command until retiring in 1960.

That year he received the Navy's Meritorious Civilian Service Award. Mr. Jennison, a life member of the Washington Society of Engineers, was its president in 1940, and received its "engineer of the year" award in 1961. He also belonged to the Society of Naval Architects and Marine Engineers.

He was a charter member of Potomac Presbyterian Church, a past member of Chevy Chase Presbyterian Church, and was a member of Grace United Methodist Church in Gaithersburg at the time of his death.

Mr. Jennison was master of the Chevy Chase Masonic Lodge No. 42 in 1939, had been grand sword bearer of the Grand Lodge, and a member of Hiram Masonic Lodge No. 10. He was also a past president of the Chevy Chase Fire Board, and had taught at George Washington University.

His wife, the former Meryl Ina Greenmun, died in 1972.

Survivors include two daughters, Helen J. Jones of Rockville, and Martha J. Shelkey of Dahlgren, Va.; 10 grandchildren, and eight great-grandchildren.