Subseries C. Family Papers contain a series of letters received by Mary B. Crowninshield from Benjamin in Washington, D.C. initially describing Jacob's health before his death and discussing political and social affairs. Later correspondence is almost entirely devoted to social activities in Washington and personal matters. There are also a number of personal letters from Mary's brothers and sisters in this folder. Material after 1830 is dominated by letters from her children. Miscellaneous family correspondence is largely made up of correspondence with Mary Boardman (Mary B. Crowninshield's mother) and letters received by Benjamin's children.