Dorothy R. "Dot" Lamborn, an educator who assisted her husband during his tenure as headmaster at McDonogh School, died from complications of a fall Sept. 20 at Bassett Healthcare, a Cooperstown, N.Y., hospital.

The Potomac resident was 95.

The daughter of a lawyer and a homemaker, the former Dorothy "Dot" Rundle was born and raised in Pittsburgh. She was a 1934 graduate of Edgewood High School.

Because her family owned a summer home at Sherwood Forest, Mrs. Lamborn enrolled at Goucher College, and then transferred to Stamford University, where she earned a degree in mathematics in 1938.

While at Stamford, she met and fell in love with her classmate, Robert Lamborn, whose father, Maj. Louis E. Lamborn, was headmaster at McDonogh from 1926 until 1952, when he retired.

The couple married in 1939.

After graduating from Harvard University in 1941 with a master's degree in post-secondary administration, Mrs. Lamborn came to live and work at McDonogh.

During World War II, she served as upper school head from 1942 to 1943. During her husband's years as headmaster, 1952 to 1972, Mrs. Lamborn did research for school projects and initiatives such as overseeing the design and construction of a swimming pool.

Her marriage ended in divorce in the early 1980s.

Since 1973, she had resided in Potomac, where she enjoyed reading, bridge and playing tennis. She was a member of the Columbia Country Club.

A memorial reception will be held from 1 p.m. to 3 p.m. Oct. 29 at the Columbia Country Club, 7900 Connecticut Ave., Chevy Chase.

Mrs. Lamborn is survived by two sons, Jeff Lamborn of Stevenson and Alan Lamborn of Fort Collins, Colo.; a daughter, Kathleen Lamborn of Oakland, Calif.; and four grandchildren.