Materials include a signed original letter from John K. Kane, Jane Duval Leiper Kane, and Elisha Kent Kane to Thomas L. Kane saying that the legislature continues its heated debates over the resolutions intended to resolve banking problems. Dated January 26, 1840.

Materials include a signed original letter from John K. Kane, Jane Duval Leiper Kane, and their son John Kent Kane to Thomas L. Kane saying that they took a trip to Washington D.C. where people there are troubled with the state of affairs in Pennsylvania. Dated February 8, 1840.

Materials include a signed original letter from John K. Kane, Jane Duval Leiper Kane, and Elisha Kent Kane to Thomas L. Kane saying that they are apprehensive of a party division and the loss of Pennsyvlania for Martin Van Buren. Tom is preparing for a trip to England and Paris. Dated February 10, 1840.

Materials include a signed original letter from John K. Kane, Jane Duval Leiper Kane, and Elisha Kent Kane to Thomas L. Kane asking about his travels and saying this will be the last correspondence to New Orleans before he sets off for England. Dated February 16, 1840.

Materials include a signed original letter from John K. Kane, Jane Duval Leiper Kane, and Elisha Kent Kane to Thomas L. Kane instructing Thomas to use John's account if he needs money. They say that they are unsure if the letter will arrive before his departure from New Orleans. Dated February 23, 1840.

Materials include a signed original letter from John K. Kane to his son Thomas L. Kane saying goodbye before Tom leaves for his trip across the Atlantic to England. Dated February 26, 1840.

Materials include a signed original letter from John K. Kane and Jane Duval Leiper Kane to their son Thomas L. Kane instructing him how to behave and act while in Europe. Dated March 8, 1840.

Materials include a signed original letter from John K. Kane, Jane Duval Leiper Kane, and Elisha Kent Kane to Thomas L. Kane saying that they miss him and that the family is busy preparing to move. Dated March 15, approximately 1840.

Materials include an original signed letter from John K. Kane to his son Thomas L. Kane saying that he's heard nothing of him since his return from Havana, Cuba, and pleads for him to return home especially if ill. Dated March 17, 1840.

Materials include a letter from John K. Kane, Jane Duval Leiper Kane, and Elisha Kent Kane to Thomas L. Kane saying they received his latest letter, describing their fears and worries about him from the past week, and asking him to return home. Dated March 19, 1840.