Katherine Boyer was the second wife, and the sister of the first wife, of Boston merchant Joseph Coolidge [1747-1820]. Joseph was a successful importer whose hallmark is occasionally found on pre-revolutionary silver, although he was not a silversmith. Joseph had his portrait painted twice by the artist Gilbert Stuart; one of these paintings is now in the collection of the National Gallery of Art (1940.1.3). The Coolidges' great grandson, Thomas Jefferson Coolidge [1931-1920], acquired in 1872 Stuart's portraits of the first five presidents, the Gibbs-Coolidge series, also now in the National Gallery of Art (1979.4.1-3, 1979.5.1, 1986.71.1) [Compiled from sources and references recorded in NGA curatorial files]
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
1995
Miles, Ellen G. American Paintings of the Eighteenth Century. The Collections of the National Gallery of Art Systematic Catalogue. Washington, D.C., 1995: 263