He was born the son of Seth Chadbourne, a blacksmith, and Lucinda Merrill Chadbourne on December 11, 1836 at Boston. On June 13, 1861 he married Annie Gurley Bradford (b.1840), daughter of Rufus and Ann Bradford of Kingston, Massachusetts.

He lived in various boarding houses. He worked as a bookkeeper for Draper & Morse, auctioneers. He built a collection of American gold coins sold at auction on July 12, 1865 atthe auction house of David F. McGilvray, Boston, Massachusetts. He was the recording Secretary of the New England Numismatic and Archaeological Society. He sold his coincollection of 223 + 99 lots through G. W. Beckford & Co., on December 14, 1864.

Emmanuel Joseph Attinelli writes this about him in Numisgraphics :

About 1890 he became an antique dealer and bookseller in the Roxbury district of Boston running the classic type of a Curio Shop.

He died on Thursday, October 13, 1904 at City Hospital of heart disease. He was survived by his wife Ann. His services were held at the Forest Hills crematory on Sundayafternoon at 2:30 p.m.

To read the complete article, see:
CHADBOURNE, SETH H.(https://sites.google.com/a/numismaticmall.com/www/numismaticmall-com/chadbourne-seth-h)

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