Materials include a letter from John K. Kane to Jane Duval Leiper Kane saying that he admired Niagara Falls and is leaving in two days for the convocation in Erie. Dated September 6, 1840.

Materials include a letter from John K. Kane to Jane Duval Leiper Kane saying that he stayed in Niagara while his companions moved on to Buffalo and he will return home through Pittsburgh after meeting with Mr. James Buchanan. Dated September 7, 1840.

Materials include a letter from John K. Kane to Jane Duval Leiper Kane saying that Erie is already crowded with delagates to the two conventions. James Buchanan has asked John to be his traveling companion. Dated September 9, 1840.

Materials include a letter from John K. Kane to Jane Duval Leiper Kane saying that the Democrats outnumbered the Whigs, he delivered the opening Democratic speech, and James Buchanan gave a fine speech. Dated September 10, 1840.

Materials include a letter from John K. Kane to Jane Duval Leiper Kane saying he arrived in a new city called Clarion then passed on to Brookville and Luthersburg. John also gives his opinion on western Pennsylvania's development. Dated September 14, 1840.

Materials include a letter from John K. Kane and Jane Duval Leiper Kane to Thomas L. Kane reprimanding him for not telling the family about his health problems and asking him to return home before the spring. They also tell him that Martin Van Buren has lost the presidential election to William Henry Harrison. Dated November 5-6, 1840.

Materials include a letter from John K. Kane to his son Thomas L. Kane advising him to alter the distant tone in his letters. John gives Thomas a political update and tells him about his problem with the U.S. Bank. Dated November 8, 1840.

Materials include a letter from John K. Kane, Jane Duval Leiper Kane, and Robert Patterson Kane to Thomas L. Kane saying that the elections are over and all the vots have been tallied. They tell him that his package has arrived and is secured. Dated November 8-18, 1840.

Materials include a letter from John K. Kane to Thomas L. Kane expressing feelings that Tom has been trying to disguise his low spirits, so he gives him some words of encouragement. Dated November 28, 1840.

Materials include a letter from John K. Kane to Thomas L. Kane saying that he is sending a package with Elliott Cresson who is on his way to London. Dated November 29, 1840.