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Patricia Robertson

The Baltimore Sun

Patricia M. Robertson, former head of the mathematics department at Bryn Mawr School, died of complications from a stroke Sunday at a hospice in Naples, Fla. She was 85.

Patricia Murnaghan was born in Baltimore and raised in Cedarcroft. After graduating from Bryn Mawr School in 1940, she earned her bachelor's degree in mathematics from Bryn Mawr College in 1943.

Mrs. Robertson taught and later headed the math department at the North Baltimore private girl's school for 25 years before retiring in 1977.

She was married in 1943 to John Jay Jackson, a partner in Baker Watts & Co. Mr. Jackson died in 1996. Her husband of eight years, William G. Robertson Jr., former president of Henry Adams Inc., an electrical and mechanical engineering company, died in 2007.

Mrs. Robertson had lived in the Woodbrook section of Baltimore County for many years, until moving to the Brightwood retirement community in Lutherville last year.

She was an avid golfer and a member of the Women's Golf Association, Elkridge Club and the Naples Yacht Club.

She enjoyed gardening, bridge, travel and spending winters at a home in Naples.

Mrs. Robertson was a member of the Episcopal Church of the Redeemer, 5603 N. Charles St., where a memorial service will be held at 10:30 a.m. April 14.

Surviving are three daughters, Carol J. Winstead of Ruxton, Jay Jackson of Woodbrook and Patricia M. "Trish" Fillo of Edwards, Colo., and six grandchildren. Another daughter, Katherine Jackson-Thompson, died in 1997.

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