Collection consists chiefly of photographs of Harold N. Segall, Assistant Professor of Medicine at McGill (1949-1960) and President of the Canadian Heart Foundation, Montreal Cardiac Society, and the Quebec Heart Foundation, as well as his parents, brother Jerry Segall, friends, and colleagues. Photographs depict Segall's childhood and early career. There are also some photographs and textual records relating to Segall's association with professional societies and Montreal hospitals, namely the Canadian Heart Association, Montreal General Hospital, and the Jewish General Hospital.

The collection documents the involvement of McGill faculty, students, alumni, and staff during the Second World War. It contains information on 5568 men and women on active service, including 295 women. It also provides information on the 298 dead, 52 prisoners of war, and 629 recipients of medals.

The greater portion consists of folders, index cards, newspaper clippings, correspondence, and photographs of individual soldiers and civilians. Index cards, documents and photographs were created and accumulated by Fetherstonhaugh and placed in alphabetical order within specific categories. The collection contains four distinct series: index cards; textual documents, including newspaper clippings; correspondence and articles arranged by subject; and photographs. The first series contains subseries reflecting Fetherstonhaugh’s original subdivision categories.

The index cards are arranged in the following groupings:

-Subversive activities
-Killed
-Prisoners of war
-University staff
-Macdonald College
-Army course
-COTC
-US
-General list A-H
-General list I-Mc
-General list M-Z
-Returned from active service
-Photos in extension file
-Photos on loan
-Women
-Civil

Other files in the collection include correspondence and newspaper clippings arranged by particular subjects; correspondence and newspaper clippings concerning the McGill War Memorial Campaign, 1947-1949; Fetherstonhaugh's account book of income and expenditures, and some vouchers, 1942-1946; McGill News articles, 1942-1946; correspondence, memoranda, invoices, reviews, and newspaper clippings, 1947-1948, concerning the book McGill University at War, 1914-1918; 1939-1945.