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Mann, Horace, 1844-1868. Horace Mann, Jr. manuscripts, approximately 1860-1868: A Guide.

Archives of the Gray Herbarium, Botany Libraries, Harvard University
Archives of the Gray Herbarium, Botany Libraries, Harvard University

© President and Fellows of Harvard College

Descriptive Summary

Call No.: gra00039
Repository: Archives of the Gray Herbarium, Botany Libraries, Harvard University
Creator: Mann, Horace, 1844-1868
Title: Horace Mann, Jr. manuscripts
Date(s): approximately 1860-1868
Quantity: 1 collection
Language of materials: English


The provenance of this collection is undocumented, however a letter from Mann's brother provides a suggestion as to how his papers came to the Gray Herbarium. On April 18, 1903, George C. Mann wrote to George Lincoln Goodale that he had come across notes for Horace's Hawaiian flora. It is likely these notes were sent to the Gray Herbarium shortly thereafter.

Processing Information:

Processed by Lynn McWhood
December 1982

Conditions Governing Access:

The collection is available by appointment for research. Researchers must register and provide two forms of valid photo identification. Please contact botref@oeb.harvard.edu for additional information.

Preferred Citation:

Horace Mann, Jr. manuscripts, Archives of the Gray Herbarium, Harvard University.

Related Materials

Other related material at the Botany Libraries, Harvard University Herbaria: Asa Gray correspondence files, 1832-1892.


Horace Mann was born on February 25, 1844 in Boston, Mass., the oldest son of education reformer Horace Mann and his wife, Mary Peabody Mann. His early education was provided informally by his father who fostered his interest in the study of nature. At the age of twelve Mann was sent to the State Normal School in West Newton, Mass., where he became particularly interested in mineralogy. In 1861 he enrolled in the Lawrence Scientific School (later part of Harvard's School of Engineering and Applied Sciences), where he took courses in zoology with Louis Agassiz and in botany with Asa Gray.
Gray encouraged Mann to accompany William Tufts Brigham to the Hawaiian Islands in 1864. Mann's botanical studies there inspired him to specialize in Hawaiian plants when he returned to the Cambridge. He presented his thesis, "Enumeration of Hawaiian Plants," and received a B.S. in 1867. Mann worked as Asa Gray's assistant and curator of the Harvard Herbarium and also served as curator of the Boston Natural History Society herbarium. Gray apparently planned to train Mann as his successor. He hope to put him in charge of the botanical garden and botany department when he traveled to Europe in September 1868. This succession plan ended on November 11, 1868, when Mann, who suffered from poor health for much of his life, succumbed to tuberculosis.
In addition to his "Enumeration of Hawaiian Plants" (published in the "Proceedings of the American Academy of Arts and Sciences," vol. VII, September 11, 1866), Mann wrote several articles and reviews for various scientific journals. His magnum opus, "Flora of the Hawaiian Islands," was left unfinished at his death.
[Brigham WT.] 1870. A sketch of the life of the late Horace Mann. Bull. Essex Inst. 1:25-31, 41-50.
Dupree AH. 1959. Asa Gray: 1810-1888. Cambridge (MA): Belknap Press.
Horace Mann. 1873. Proc. Amer. Acad. Arts. 8:129-131.
Stafleu FA, Cowan RS. 1981. Taxonomic literature: a selective guide to botanical publications and collections with dates, commentaries and types. 2nd ed. Utrecht: Bohn, Scheltema & Holkema.

Scope and Content

The Mann manuscripts consist primarily of drafts and notes pertaining to his partially published monograph, "Flora of the Hawaiian Islands." There is an incomplete draft of the published section and drafts in varying degrees of completeness of unpublished sections.

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