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Clemens, Mary Cornelia



  • Existence: 1873 - 1958


Mary Cornelia Clemens was born in St. Louis in 1873, the daughter of James Wolfe Clemens and his cousin Helen I. Clemens. Her mother was a granddaughter of St. Louis businessman and philanthropist John Mullanphy and had married James Clemens Jr. James Wolfe Clemens came from the West Virginia branch of his wife's own father's family.

Mary Clemens attended Maryville Academy and then spent two years at the Sacred Heart Convent in Marmoutier, France. She never married. Clemens devoted her life to her Roman Catholic religion and to her family. She was very close to her sister Elizabeth Clemens Clarke, and wrote a touching tribute to her nephew Powhatan Hughes Clarke upon his death in 1920. Mary Clemens was apparently almost a professional genealogist for the Clemens, Mullanphy, and related St. Louis families, producing several manuscript histories which she continued to revise until her death.

Found in 1 Collection or Record:

Clemens-Hardaway Manuscript Collection [DOC MSS 29]

Identifier: DOC MSS 29
Abstract This collection represents one of the three main divisions within the material donated by Elizabeth Tilton Seeley, niece of Harriet Lane Cates Hardaway and apparent inheritor of the Hardaway estate. The bulk of the Clemens-Hardaway Manuscript Collection consists of the genealogical research materials of Mary Cornelia Clemens, first cousin once removed of Harriet Hardaway. (Clemens and John Mullanphy Cates, Hardaway's father, were first cousins.) Hardaway shared Mary Clemens's interest in the...
Dates: 1771-1986