Richard M. Whitty Jr. 62, president of the Whitty Contruction Co., Inc., which was founded by his father in 1916, died of cancer Monday at his home in Chevy Chase.

Mr. Whitty was born in Washington and graduated from St. John's College High School and Catholic University, where he earned a degree in engineering in 1938. He joined the family firm after World War II service in the Coast Guard. He had been president since the late 1950s.

He also had been vice president and then president of the Master Builders' Association, the Washington chapter of the Associated General Contractors of America.

Among the buildings that Mr. Whitty's company built was St. Mary's School in Rockville. The firm also had done work on the White House kitchen and dining room.

Mr. Whitty was a member of the Shrine of the Most Blessed Sacrament and had been president of the Holy Name Society.

Survivors include his wife, the former Ann Stohlman, of the home; two sons, Richard P. III, of Potomac, and John William, of Bethesda; two sisters, Catherine Vera Whitty and Mary Alma Whitty, both of Washington and five grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Little Sisters of the Poor, 601 Maiden Choice La., Baltimore, 21228, for their Washington home.