Autograph letter from Rudolf Grimm to Alexander Wheelock Thayer (9 October 1869)

Autograph letter signed from Bettina (Brentano) von Arnim to Dr. Speiss

Autograph note from Dorothea Grimm to Alexander Wheelock Thayer

Beethoven [poem]

Certificate of authenticity for Beethoven's quill pen in the framed object in the Yvonne Hummel Collection (C_Hummel_001)

Certificate of authenticity for a lock of Beethoven's hair in the framed object in the Yvonne Hummel Collection (C_Hummel_001)

Certificate of authenticity for a lock of the hair of Duchess Amalia of Saxony-Weimar in the framed object in the Yvonne Hummel Collection (C_Hummel_001)

Certificate of authenticity for the lock of Goethe's hair in the framed object in the Yvonne Hummel Collection (C_Hummel_001)

Donation receipt from the Egypt Exploration Fund

Envelope addressed to A. W. Thayer in Vienna by J. L. Motley

Envelope containing letter from J. L. Motley to A. W. Thayer in Trieste

Letter from C. M. Sedgwick to A. W. Thayer (1865?-07-05)

Letter from Charles Lever to A. W. Thayer with invitation to dinner, dated Monday, May 4 [1868?]

Letter from F. J. Child to Justin Winsor (1884-06-10) with a note to A. W. Thayer

Letter from Herman Grimm to Alexander Wheelock Thayer (26 November 1856)

Letter from Herman Grimm to Alexander Wheelock Thayer, undated

Letter from John Lothrop Motley to A. W. Thayer (1867-01-31)

Letter from Joseph Joachim to A. W. Thayer (1891-10-20)

Letter from Julia Ward Howe to A. W. Thayer, with envelope

Letter to "Georgie" dated 5 December 1876 from "your loving ?Mammy"

Letter to Alexander Wheelock Thayer regarding rent payments (3 June 1856)

Manuscript note to A. W. Thayer regarding delivery of a letter to Howells

Note from Dorothea Grimm to Alexander Wheelock Thayer, January 1859

Note to Henry [?Thayer] from Harriet Beecher Stowe

Receipt for Susan Thayer's donation to the American Board of Commissioners for Foreign Missions

Ship receipt from April 2, 1856

Testimonial letter for A. W. Thayer from Calvin Ellis Stowe, 2 May 1857