Materials include an original letter from John K. Kane to Elisha Kent Kane telling him about the problems at the Pennsylvania Medical College and asking for Elisha to write him at every opportunity. Dated October 12, 1843.

Materials include an original letter from John K. Kane to his son Elisha Kent Kane, which includes some recent medical reports and information about the economic conditions in their community. Dated November 7-8, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane telling Elisha that Thomas L. Kane decided to spend the winter in Paris. John predicts that slavery will be extinct by 1900. He also talks about Roman Catholicism. Dated October 31, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane saying that the election took place yesterday and that he is working on the Girard Bank trial. Dated October 12, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane saying that Elisha's mother, Jane Duval Leiper Kane, is well and that his brother, Thomas L. Kane, has arrived in Paris. Dated November 23, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane in which John wishes Elisha well and updates him about United States current events, John's work, and the people he is working with. Dated November 12-23, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane saying that he is going to Washington to finish some business and tells Elisha more about what is currently happening in Washington. He says it is likely that Alexander Dallas Bache will succeed Ferdinand Rudolph Hassler as head of the Coast Survey. December 1-4, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane saying that John will send Elisha a package soon. John tells Elisha that his brother Thomas L. Kane has just arrived in Paris. Dated December 4, 1843.

Materials include an original letter from John K. Kane and Jane Duval Leiper Kane to Elisha Kent Kane. The letter contains Christmas greetings and an update on all of the family members, including Thomas L. Kane, who was away in Paris. Dated December 26, 1843.

Materials include an original letter from John K. Kane to Elisha Kent Kane with words of encouragement, an update of political and domestic affairs, and information about the presidential election. Dated January 28, 1844.