Delaware 1926 Air Photo Connection Collection - readmecd.html Dr. John Mackenzie's University of Delaware SpatLab site. The US Army Air Corps was contracted by the Delaware State Transportation Agency to fly and photograph the entire state in the spring of 1926.
Details are scarce as to the existence and location of the original negatives.
The available contact prints were used in planning construction projects, many of which were done through CCC efforts in the 30's. The first CD contains images ranging from photo numbers 2 - 999. The second CD contains the remainder. Note that image quality varies due to the source contact prints. Each polygon on the photo index has a data field called ID with the value representing the photo number.