This subseries contains diaries kept by various members of the Lowell family, mostly while traveling. There are four diaries kept by John Lowell detailing his European travels. Three of the diaries were written with his wife Rebecca in 1804 and pertain to his travels in England, Wales, Scotland, France, and Switzerland. The fourth was written in 1817 while at sea on a return voyage from Liverpool to Boston with his wife Rebecca. There is also a diary of Rebecca Lowell, 1805, detailing her travels in France, England, and Wales. There are two volumes of diaries kept by Ann McLean Lee, 1815-1817, copied by Anna Cabot Lowell, of travels in Italy and France. There are diaries kept by an unidentified author while traveling through Wales, Scotland, and England from September-October 1814, with descriptions of towns visited, social engagements with acquaintances, and daily activities. Rebecca Amory Lowell's diary, ca. 1825, records a trip to western Massachusetts with stops at Williamstown, Lenox, and Hancock. Lowell describes her impressions of the Shaker religion and a village located at Hancock, Massachusetts, and her experience at the meetinghouse during a service.

This subseries contains an account book of Rebecca Amory Lowell, as well as account books of the Sohier family of Boston, including John Baker Sohier, Susan Cabot Lowell Sohier, and her husband William Sohier. The John Baker Sohier account book and ledger contain information on business transactions, including the purchase of household goods, food, and dry goods. Susan and William Sohier household account book records purchases of meat, milk, vegetables, household supplies, and children's clothing, among other things. Rebecca Amory Lowell's account book records payments made to charity, purchases made, and payments received for services provided.

Included here are practice books containing mathematical, navigation, and surveying questions and answers kept by members of the Sohier family.

This subseries consists of Sunday school lesson notebooks containing questions, essays, and quotations relating to French, history, geography, geology, religion, and zoology. Many of the notebooks contain lessons on various subjects; listed below are titles taken from the first page and/or cover of each notebook, but more subjects may be covered inside. The majority of the notebooks are undated and apparently in the handwriting of Rebecca Amory Lowell (1794-1873) (except as noted below), most likely composed for her Sunday school students at the First Church of Roxbury. Three students are referenced: Anna E. Putnam, Caroline/Carrie, and Lizzie. Also included in this subseries are two notebooks containing lessons for the Sunday school at King's Chapel, Boston.

This subseries contains miscellaneous notebooks, including essays and extract books kept by Lowell family members, as well as members of the related Sohier and Amory families. Included is a book of extracts from Thompson's Seasons kept by John Baker Sohier, 1784; Sarah Higginson Lowell's penmanship book, ca. 1815; an extract book containing quotations kept by Frances Augusta Amory, 1817, and a notebook written in Italian; Rebecca Amory Lowell's essay book kept from 1827-1835 containing topics on religion, literature, and morality; and a notebook kept by Susan Cabot Lowell (Sohier), May 1843, containing verse and poetry.

This subseries contains the writings and extract books of Anna Cabot Lowell (1808-1894). Included are works on religion, history, and education. Anna Cabot Lowell was a Sunday school teacher at the First Church of Roxbury, and many of these writings were most likely used in her teachings.

This subseries consists of a letterbook of Scottish author Anne MacVicar Grant from 1809-1810. However, it is unclear to whom the letters are written. The letters describe her daily activities.