I am aware of a Susanna Dewsnap, born about 1840, who had become a missionary and traveled to Africa where she died as a result of "African Fever." It is obvious that this Susanna is the same Susanna for which you seek information.
Susanna Dewsnap’s parents were George Dewsnap, b. 1814 in Woodstock, Oxfordshire, England, and Susan (unknown) b. 1819 in New York.Susanna had four brothers, Mark V., William R., George, and Samuel, and a sister, Charlotte.Susanna had been a student at the Johnstown Academy near Albany, NY.
Her paternal grandparents were George Dewsnap, b. Aug. 1783 in Woodstock, Oxfordshire, England, d. Oct 1837, and Mary Ann Pates, b. Aug 1791 in Bicestor, Oxford, England. They immigrated to the United States around 1832. They had a total of nine children.
Based on information supplied by Roger Dewsnap several years ago, Susanna's great grandparents would be Joseph Dewsnap, b. abt 1740 , d. Aug 1812 in Woodstock, Oxfordshire, England, and Ann Du-Bois.Susanna’s great-great-grand parents would be John Dewsnap, b Dec 1717 in Crosse Cliffe, Derbyshire, England, d. May 1777 in Glossup, Derbyshire, England,and Martha Morly(?). Susanna's great-great-great grandparents would be Robert Dewsnap of Derbyshire, England, d. 1773, and Mary Dearnelly.
The email contact information on this site is incorrect and needs to be updated. The email contact should read:firstname.lastname@example.org
I hope this information is of interest to you. I will pass along your information to Susanna's grandniece, Marie(Dewsnap) Spears.I am sure Marie will be interested in whatever further details you can provide about Susannas experiences as a missionary in Africa.