Mary Stout Cowgill (1855-1938) married James Martin (b. 1852) in 1884 and lived most of her life in Delaware. Mary Wynne Wister (1847-1933) married Algernon S. Logan (1849-1925), a descendant of William Penn's secretary James Logan. They lived in Philadelphia and New Jersey. The Mary Stout Martin letters to Mary Wister Logan, 1888-1932, are mostly of a personal and routine nature, although some larger topics may also be addressed.
The Logans were a prominent Philadelphia family dating to 1699, when James Logan (1679-1751), the family patriarch, arrived in Philadelphia to serve as Secretary of the Pennsylvania colony. Through work in trade and politics, Logan and his descendants were intimately involved in the development of colonial Pennsylvania and, later, the fledging United States. The Logan family papers, 1700-circa 1850, consist of scattered documents related to the Logan family and their home, Stenton (in Germantown, Philadelphia, Pa.). It includes letters, deeds and estate papers, three cookbooks, and various other documents.