Scope and Contents The bulk of this series consists of copies of letters sent to Mason Fitch Cogswell (1761-1830), the Connecticut physician whose backing and leadership helped fund Thomas H. Gallaudet’s American Asylum. This general correspondence is arranged by the surname of the sender.There is also a collection of letters between Mason Cogswell and his various family members, including his father, Rev. James Cogswell (1720-1807); Mason’s daughter, Mary A. Cogswell (1801-1868), later Mary...