The first journal, entitled, "Exchange Book A 1833," includes notes on minerals, individuals, and destinations spanning 6/15/1833-4/7/1843.
 
Jackson maintained two sequential volumes between 1840 and 1841. The 1840 notebook contains entries written between 9/21-10/6, and devotes significant attention to non-geological affairs, such as towns and people, husbandry, farming methods, and yields for oats, potatoes, wheat, and various dairy products. The 1841 volume is considerably more focused on geology, with detailed accounts of granite, smoky quartz, limestone, iron, marble, and lead mines and quarries across New England. While these entries are almost single-mindedly focused on geology, there are instances when Jackson considers other affairs. For example, between 7/4-7/9, he briefly acknowledges the illness, death, and funeral of his daughter, Susan
 
on 7/20, he notes a "late speculation mania
 
" and shortly after an 8/17 entry, he describes a visit to Quebec with some commentary on the Lower Canada Rebellion. This journal features numerous hand-drawn diagrams, many of which are noteworthy for their excellent draftsmanship (8/15 and 9/15).
 
An 1849 journal continues in much the same vein, detailing geological discoveries, carefully rendered diagrams (e.g. 8/4), and barometric readings.
 
Jackson also maintained an account book that spans January 1855-October 1857. That volume features a letter to a "Humphrey Esq.," dated 1/6/186[sic] and a signed entry concerning a dispute regarding certified copies of a document, dated 8/21 (presumably 1857). Interested researchers may choose to review other notebooks in the Geology Journals box, such as a catalog of rocks and minerals from Lake Superior and a scrapbook maintained by Mrs. C.J. Jackson, dated 1881.

Charles Thomas Jackson maintained at least five notebooks that could be classified as diaries, which detail geological expeditions undertaken between 1833-1849. These diaries may interest researchers considering Jackson's geological surveys, New England farming, husbandry, and geology, and the Lower Canada Rebellion.
 
The first journal, entitled, "Exchange Book A 1833," includes notes on minerals, individuals, and destinations spanning 6/15/1833-4/7/1843.
 
Jackson maintained two sequential volumes between 1840 and 1841. The 1840 notebook contains entries written between 9/21-10/6, and devotes significant attention to non-geological affairs, such as towns and people, husbandry, farming methods, and yields for oats, potatoes, wheat, and various dairy products. The 1841 volume is considerably more focused on geology, with detailed accounts of granite, smoky quartz, limestone, iron, marble, and lead mines and quarries across New England. While these entries are almost single-mindedly focused on geology, there are instances when Jackson considers other affairs. For example, between 7/4-7/9, he briefly acknowledges the illness, death, and funeral of his daughter, Susan
 
on 7/20, he notes a "late speculation mania
 
" and shortly after an 8/17 entry, he describes a visit to Quebec with some commentary on the Lower Canada Rebellion. This journal features numerous hand-drawn diagrams, many of which are noteworthy for their excellent draftsmanship (8/15 and 9/15).
 
An 1849 journal continues in much the same vein, detailing geological discoveries, carefully rendered diagrams (e.g. 8/4), and barometric readings.
 
Jackson also maintained an account book that spans January 1855-October 1857. That volume features a letter to a "Humphrey Esq.," dated 1/6/186[sic] and a signed entry concerning a dispute regarding certified copies of a document, dated 8/21 (presumably 1857). Interested researchers may choose to review other notebooks in the Geology Journals box, such as a catalog of rocks and minerals from Lake Superior and a scrapbook maintained by Mrs. C.J. Jackson, dated 1881.