Contains correspondence of John Ferguson Weir dated from December 18, 1873 to July 1, 1920 primarily from West Point. The letters concern artwork, family events, and future exhibitions.

Contains the papers of various members of the Weir family, including Robert Walter Weir (1803-1889), John F. Weir (1841-1926), and Julian Alden Weir (1852-1919) and others. Contains correspondence, diaries, scrapbooks, manuscripts, speeches, artwork, clippings, and published material relating to the family, dating from between 1765 to 1952. The bulk of the collection relates to Julian Alden Weir.

Contains a riddle book belonging to William Bayard Weir, dated circa March 1878. Riddles are collected by famous authors on various subjects including scriptures and anagrams. The joke book was made by William's sister-in-law, Anna C. Weir and six envelopes contain loose papers found between pages of the book.