Subseries B. Correspondence includes letters written to Crowninshield by her husband and her children. There are a few letters from Benjamin Williams Crowninshield before they were married, and one in particular speaks to Benjamin Williams's desire to be married. Most of the letters from the children are from Francis Boardman Crowninshield (1869-1958) and Bowdoin Bradlee Crowninshield (b. 1867). The letters from Francis Boardman are written while he was at boarding school. The letters to Benjamin Williams from Katherine Crowninshield contain mostly daily household events.