Catherine was the granddaughter of Joseph [1747-1820] and Katherine Boyer Coolidge [1755-1829]. Joseph was the subject of two portraits by Gilbert Stuart, one of which is now in the National Gallery of Art (1940.1.3). The younger Catherine was married to Samuel Wyllys Pomeroy, and had seven children, among them a daughter, Clarissa Alsop Pomeroy [b. 1846].
Bibliography
1912
Pomeroy, Albert A. History and Genealogy of the Pomeroy Family. Toldeo, Ohio, 1912: 513
1930
Coolidge, Emma Downing. Descendants of John and Mary Coolidge of Watertown, Massachusetts. Boston, 1930:335, 354, 355