Robert H. Smith, 68, a vice principal of Paint Branch High School in Silver Spring who retired in 1975 with 28 years of service in the Montgomery County school system, died Feb. 12 at the Washington Adventist Hospital in Takoma Park.

Mr. Smith, who lived in College Park, was born in Camden, N.J. He moved to the Washington area as a student at the University of Maryland, where he graduated in 1942. He served in the Army in World War II, rising to the rank of captain, and was wounded during the Italian campaign.

He began his career in Montgomery County in 1947 as a teacher of history, science and mathematics. He was a teacher and counselor at Richard Montgomery High in Rockville and a vice principal and counselor at Northwood High in Silver Spring before joining the staff of Paint Branch.

Mr. Smith was a member of the University United Methodist Church in College Park, the College Park Rotary Club, the Montgomery County Retired Teachers Association and the National Education Association.

Survivors include his wife, Lucile Laws Smith, of College Park; two children, Jane S. Fisher of College Park, and Robert Smith of Dunedin, Fla., and three grandchildren.