Original writings, diary entries, correspondence, articles, newspaper clippings, ephemera, keepsakes, and photographs concerning the Cobb family members of several generations. The collection contains 35 letters written to and from Cyrus and Darius Cobb while the brothers served for the Union army in the 44th Massachusetts Regiment during the Civil War. Other areas of interest include materials concerning the life and work of Cyrus and Darius Cobb, twins and prominent artists; Ernest Cobb, writer and publisher; Cora Cobb, writer and lecturer; and Stanwood Cobb, writer and educator. In addition, the memoirs of Edith Cobb (Myers) Allen provide insight into daily life in 19th- and 20th-century Massachusetts. 3 manuscript boxes. A finding aid and scans of the Civil War letters are available, along with transcriptions of some of the letters.