Agatha A. S. Rider, 84, biochemistry teacher

January 25, 2004

Agatha Ann Siegenthaler Rider, who taught and performed research in biochemistry at the Johns Hopkins School of Hygiene and Public Health, died Jan. 18 of complications from Alzheimer's disease at the Morningside Assisted Living House in Ellicott City. She was 84 and had previously lived in Columbia.

Born Agatha Ann Siegenthaler in Buffalo in 1919 and known as Aggie, she moved with her family in 1935 to Baltimore, where her father, the Rev. Gottlieb Siegenthaler, was pastor of St. Matthew United Church of Christ until 1960. She was a 1936 graduate of Eastern High School, and in 1940 earned a bachelor's degree from Goucher College.

She later earned a master's degree from the Johns Hopkins University, where she was for many years a teacher and research faculty member in biochemistry at the School of Hygiene and Public Health. She retired in 1984.

In 1948, she married Rowland Vance Rider, who earned his doctorate in statistics and demographics and who also worked at the School of Hygiene and Public Health. The couple traveled extensively in India and Pakistan, where Mrs. Rider pursued her interest in maternal nutrition and conducted workshops.

Mrs. Rider also supported the arts in Baltimore, where the couple lived until moving to Columbia in 1990. They were members of St. John United Methodist Presbyterian Church.

A memorial service is scheduled at 10 a.m. Saturday, Jan. 31, at St. John, at the Wilde Lake Interfaith Center, 10431 Twin Rivers Road in Columbia.

She is survived by her husband of 55 years; a brother, David Siegenthaler of Cambridge, Mass.; and several nieces and nephews.

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