21 letters of Jane Welsh Carlyle to her mother, Grace Welsh, to her father, John Welsh, to Mrs Oliphant, Mrs Russell, and to her uncle. Also included are 4 letters of her father, including one to Jane, and 10 letters to John Welsh from various correspondents. There are 8 further family letters and papers, including a copy of a letter by Colonel Davidson to Thomas Carlyle on the death of John Welsh annotated by Carlyle in blue pencil; a later copy of Jane's will with envelope inscribed by Thomas, and miscellaneous printed matter.

There is a contents list at the beginning of the file.