Homer R. Schwartz, 70, a retired IBM marketing and program manager who had been a star lacrosse player in his youth and a lacrosse mentor later in life, died Dec. 16 at his home in Annandale. He had prostate cancer.

His wife, Karen Flann, confirmed the death.

At Johns Hopkins University in the early 1960s, Mr. Schwartz was a two-time All-America lacrosse player. He spent his career at IBM Systems and retired from the Gaithersburg office in 1992. He subsequently reactivated his interest in lacrosse.

He served as president of the U.S. Lacrosse Potomac chapter from 1998 to 2012 and was inducted into the hall of fame in 2007. The chapter credited him with starting a program to help new coaches and with reenergizing the chapter through annual high school all-star games and an annual golf outing.

He was inducted into Johns Hopkins Athletic Hall of Fame in 2011 and received a lifetime achievement award in 2012 from the Washington Area Lacrosse Officials Association.

Homer Randolph Schwartz was a Baltimore native and a 1964 engineering science graduate of Johns Hopkins. In 1966, he received a master’s degree in operations research from Northwestern University in Illinois. He served in the Army at the Pentagon from 1966 to 1968.

His marriages to Margo Hill and Judy Ruff ended in divorce. Survivors include his wife of 12 years, Karen Flann of Annandale; a stepdaughter, Kathy Flann of Baltimore; and a brother, Dowell Schwartz of Towson, Md.

— Adam Bernstein