14 cubic ft., 1925-1991. Contains correspondence, procedure manuals, meeting minutes, membership applications sorted alphabetically, program books, scientific papers, awards, ballots, subject files, and photographs of the James Ewing Society. Also includes materials relating to or created by James Ewing, including papers, diary entries, and a woodcut of his signature.

Contains meeting minutes and dockets of the MH Medical Board (1912-1914) and correspondence (1900-1913) documenting some of the hospital’s daily operations. Also includes reports regarding x-ray work performed at MH, work done by the Huntington Fund, and a report to the Medical Board by the Committee on Radioactive Materials.

4 cubic ft., 1951-1977. Contains grant information, correspondence, papers, lectures, reviews, reports, MH, SKI, MSKCC; minutes, personnel files, misc.