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Karen Bogart Yoh | Executive, 42

Karen Bogart Yoh, 42, of Haverford, a Day & Zimmermann vice president, died of an apparent heart attack Monday at home.

Karen Bogart Yoh
Karen Bogart YohRead more

Karen Bogart Yoh, 42, of Haverford, a Day & Zimmermann vice president, died of an apparent heart attack Monday at home.

Ms. Yoh grew up in Bryn Mawr and graduated from Agnes Irwin School in Rosemont. She earned a bachelor's degree from Duke University. She then worked in office services for DuPont Co. before joining Day & Zimmermann Inc. in Philadelphia in the 1980s.

The firm, which provides diversified professional and technical services to industry and government, was founded by engineer John Day in 1901. It has been owned by the Yoh family for more than 30 years.

Ms. Yoh was vice president of corporate and community affairs for Day & Zimmermann and was also president of Barclay Travel, a company subsidiary.

Her father Harold "Spike" Yoh Jr., the firm's chairman, turned over day-to-day operations to Ms. Yoh and her four brothers in 1998.

"We're all very supportive of one another," she told an Inquirer reporter that year. "None of us is afraid to have our say. You always have arguments but never fights," she said.

Ms. Yoh served on the boards of the Coriell Institute for Medical Research and the Duke University Library.

She loved babysitting her 14 nieces and nephews, said her mother, Mary Yoh, and took them to lunch and swimming. She had designed a kid-friendly recreation room in the home she was building in Haverford, her mother said.

In addition to her parents and nieces and nephews, Ms. Yoh is survived by brothers Hal, Mike, Jeff and Bill.

A memorial celebration will be at 11 a.m. today at the Episcopal Church of the Redeemer, Pennswood and New Gulph Roads, Bryn Mawr.