- Authors, American--19th century--Correspondence (1)
- Boys--Fiction (1)
- Finn, Huckleberry (Fictitious character)--Fiction (1)
- Fugitive slaves--Fiction (1)
- Humorists, American--19th century--Correspondence (1)
- Male friendship--Fiction (1)
- Mississippi River--Fiction (1)
- Missouri--Fiction (1)
- Race relations--Fiction (1)
- Runaway children--Fiction (1)
- Twain, Mark, 1835-1910--Correspondence (1)