Materials include an original letter from John K. Kane to Thomas L. Kane, telling him that there is word that John's nomination will be confirmed unanimously. President James Polk has signed the Oregon Treaty. Dated June 15, 1846.

Materials include an original letter from John K. Kane to Thomas L. Kane. John writes that the government seeks definite word about the character of the Mormon leaders. John tells Thomas that California should now be an undisputed American possession and that he, Thomas, has the President's (James K. Polk's) utmost confidence. John has received a confirmation as a United States District Court judge and that James Buchanan is to be his associate. Dated June 18, 1846.

Materials include an original letter from John K. Kane and Jane Duval Leiper Kane to Thomas L. Kane saying that John is settling into his new job as a district court judge and reminding Tom to take care of his health. Dated July 20-22, 1846.

Materials include an original letter from John K. Kane and Jane Duval Leiper Kane to Thomas L. Kane. The letter says that Tom's parents have received word that he is convalescing and is on his way home to Pennsylvania. The letter also says that John has been in session almost every other day since Tom's departure for the West. Dated September 6, 1846.

Materials include an original letter from John K. Kane to Jane Duval Leiper Kane detailing a trip northward from Newport to Albany and Boston. Dated August 21, 1847.

Materials include an original letter from John K. Kane and Jane Duval Leiper Kane to Thomas L. Kane giving the latter an update about family and local news. Dated May 3, 1847.

Materials include an original letter from John K. Kane to Jane Duval Leiper Kane, giving her the details of John's trip since he left Newport. The letter has an extra page inserted within the folded page. Dated August 25, 1847.

Materials include an original letter from John K. Kane to Jane Duval Leiper Kane saying that he arrived at the Canandaigua Hotel. Dated August 29, 1847.

Materials include an original letter from John K. Kane and Jane Duval Leiper Kane to Thomas L. Kane. The letter gives an update from home and a description of the land at Fern Rock. Dated January 19-23, 1853.

Materials include an original letter from John K. Kane to Thomas L. Kane, which discusses Thomas's travels and problems at Fern Rock with the eastern railroad and the issue of eminent domain. It also mentions visits with Martin Van Buren and James Buchanan. Dated February 6-7, 1853.