A graduate of Catonsville High School, he served in the Navy during World War II, attaining the rank of seaman second class. He earned a bachelor’s degree in electrical engineering in 1950 from the University of Maryland School of Engineering and a master’s degree in engineering in 1958 from the Johns Hopkins University.
“He had gotten interested in radar during the war,” said his daughter, Leslie Ann Wilson of St. Augustine, Florida.
Mr. Walker began working at Westinghouse in 1955 as a program manager and later represented the company in numerous foreign countries. He retired in 1991.
He served on PTAs and coached and managed Little League Baseball teams in Catonsville.
His first wife, the former Jerry Ellison, died in 1985, and he married the former Carole Brown in 2001.
He and his wife, who were members of Rolling Road Country Club and lived in Severna Park, enjoyed golfing and traveling.
In addition to his wife of 19 years and daughter, Mr. Walker is survived by his son, Craig Hamilton Walker of Columbia; a stepson, Scott Jakovics of Severna Park; a stepdaughter, Tracey Kersley of Massachusetts; two grandsons; and four step-grandchildren.