Leo J. Kohn Photography Collection

About Leo J. Kohn

Leo J. Kohn was a pivotal figure in Wisconsin aviation history, known for his unparalleled passion for and dedication to documenting aircraft. He played a key role in the formation of the Experimental Aircraft Association (EAA), becoming its fourth member. However, it was his work on the ground as a photographer that truly distinguished him. His extensive photographic coverage of aircraft from the 1940s, 50s, and beyond, encompassing over 34,000 images, coupled with his meticulous notes on each plane, is a testament to his dedication. The collection is truly a treasure trove for aviation enthusiasts.

What makes this collection unique?

• The photos you see here are from Leo's personal and business collection, which was gifted to WAHF for the purpose of sharing and preservation.
• Most negatives are enclosed in individually numbered envelopes with detailed notes about the aircraft pictured. The envelope notes contain valuable information about locations, owners, engines, serial numbers, tail numbers, and more.
• Leo took many of the photos. His collection also contains photographs from numerous other photographers.

You Can Help!

You'll be excited to hear about our ambitious plans for this photo collection!

• We're thrilled to announce that with your help, WAHF will be developing a dedicated public website for the entire collection, which will be accessible to you.
• The extensive data on the envelopes will make the entire collection easily searchable for you.
• We're currently working on museum displays, history presentations, and plans to publish a book, all for your enjoyment, education, and personal research.
• The large size of the negatives allows us to capture and preserve incredibly high-resolution digital images from the source media. These large images are more costly to store and preserve.