William Thomas Peake Sr., 53, an employe of the Chesapeake & Potomac Telephone Co. for 28 years, died Tuesday at Anne Arundel General Hospital in Annapolis after a heart attack.

Mr. Peake began his career with C&P in 1951 as a lineman and installer. He became an installation and repair technician in 1956.

During World War II, he served in the Navy and was a frogman on one of the Navy's first underwater demolition terms. He received a Purple Heart for burns received when his ship was hit by a torpedo.

Mr. Peake was born in Washington and graduated from McKinley Technical High School.

In about 1949, he was honored by the American Red Cross for rescuing a young man from drowning at Great Falls, Va.

Mr. Peake lived in Seabrook before moving to Edgewater, Md., in 1975. He was a former member and usher at St. Matthias Catholic Church in Lanham and a member of Our Lady of Perpetual Help Catholic Church in Edgewater.

He was a life member and twice past commander of American Legion Post 136 in Greenbelt.

Survivors include his wife, the former Catherine Tippett, and a son, Daniel, both of the home; another son, William T. Jr., of Kent Island, Md.; a daughter, Katherine A. Sylvester, of Riverwood, Md.; three sisters, Dorothy Oliver, and Patricia Thacker, both of Edgewater, and Betty Alberding of Silver Spring; two brothers, John, of Silver Spring, and Donald, of Laurel and two grandsons.

The family suggests that expressions of sympathy be in the form of contributions to the woodland beach Rescue Squad or to the Paramedics C. C. Unit of Anne Arundel General Hospital in Annanpolis. CAPTION: Picture, WILLIAM THOMAS PEAKE SR.