Papers consist of three types of material: correspondence, loose manuscript leaves, and ms. notebooks. Correspondence consists of letters written by Sayer, his wife, Sarah A. Sayer, and the Superintendent at the Asylum, John Gray, during Sayer's stay at the Asylum. Loose manuscripts consist of miscellaneous notes, a poem, Sayer's teacher certification, and the school lists of both Sayer and his wife, then Sarah Ann Bennet. Notebooks: "Sketches of life" (a journal, tp., 23 pp., 1842-1859); "A book intended for writings" (notebook of essays and poems, tp., 23 pp., 1837); and an algebra notebook (tp., 85 pp., 1833) with notes on town bonds at the end (3 pp., 1872).