Includes one letter dated Sept. 29, 1930 from S.C. Tweed in Waterloo, thanking Harvey for recommending Forsey Page as architect for a new school in Waterloo.
Includes eight letters from Lord Trenchard, Dancers Hill House, Barnet, Hertfordshire written between 1931 and 1937.

Correspondents include William Valores Uttley, January 7, 1932, asking Harvey J. Sims to pass the enclosed biographical sketches to Florence to proofread and add information. The sketches are of Harvey, William Roos, and Mrs. William Roos (nee Davidson). The Waterloo Grand River Parks Co. sends two sustaining membership cards for "Cressman's Woods"; Mrs. Wilson from Ingleside Villa, N.B. is a lawn bowling connection and Grainger Whitney sends a news clipping, a note, and a photograph of an unidentified house, possibly in Chicago.

Correspondence from and to Harvey J. Sims and various book dealers and publishers relating to Harvey's efforts to build his library collection: Albert Britnell Book Shop (Toronto), The Book Society, World Books, Old Authors Shop (Ottawa), The Narrator (January 1942), Toronto Book Fair, Creasser's Book Shop (Toronto), T. Eaton Co. and the John Hardwick Co. (The Book House for Children). Includes invoices, catalogues, book lists, reviews, periodical issues and ephemera.

Correspondence from and to Harvey J. Sims, Adam Strohm, Librarian at the Detroit Public Library, and Charles R, Sanderson, Chief Librarian of the Toronto Public Library, between 1927 and 1941, the latter two often enclosing each other's letters. Adam Strohm sometimes encloses letters from Fred Burden, a mutual friend of his and Harvey's. Harvey had initially approached Adam Strohm for advice about books for his library; this correspondence included Sanderson after 1927. As well as corresponding about books these three men developed a friendship demonstrated in their letters, writing about their visits, their travels, and their lives.