The Harry E. Winkler Photographic Collection (WIN) includes more than 7,500 different boxing related images in various formats (photographic prints, glass negatives, and film base negatives), ca. 1920-ca. 1958. Winkler was a longtime Los Angeles area fight figure and California correspondent for The Ring magazine from 1939 to 1953. He is best remembered, however, for his extensive collection of boxing photographs, many of which were acquired by the University Libraries of Notre Dame in 1977. Highlights of the collection include close to 4,000 4 x 5 inch glass negatives, mostly taken in California in the 1920s and 1930s. These are typically posed portraits of individuals or groups; virtually no fight scenes are included. Among the boxers best represented (by more than 30 plates) are: Sgt. Sammy Baker, Newsboy Brown, Tony Canzoneri, Bert Colima, Speedy Dado, Jack Dempsey, Joe Dundee, Jackie Fields, Ace Hudkins, Les Kennedy, Fidel LaBarba, Jimmy McLarnin, Tod Morgan, Tommy O'Brien, Lee Ramage, Baby Sal Sorio, Bud Taylor, and Mickey Walker.
The Winkler Collection also includes close to 1,000 4 x 5 inch and 8 x 10 inch film base portrait negatives; most of these date from the 1940s and 1950s, although some are second-generation negatives of late nineteenth and early twentieth century prints. There are also more than 1,500 different 8 x 10 inch portrait photographs to which no negatives in the collection correspond. For the most part, the portraits in the Winkler Collection are of boxers who fought professionally in the United States (c. 1920-1960) with a very decided emphasis on fighters who had a California connection. Also in the collection are over 1,000 4 x 5 inch film base negatives (with contact prints) showing fight action; most of the bouts involved were held in the San Francisco Bay area in the late 1940s. The collection also includes a proportionately small number of images of professional wrestlers. A comprehensive database to the Winkler Collection portraits is currently in preparation.