Hi everyone: I am studying the wild animals around abandoned cranberry farms, including birds and frogs. There are some quite amazing species using the abandoned cranberry farms as their habitats. One big problem now I am facing is to figure out the history of those farms, the most important questing is when the farm was abandoned. I have one site located at Friendship (Friendship farm was once the biggest cranberry farm in the Pine Barrens), and I have been poking around trying to find out some information about that farm. Everybody told me that the site is pretty old, but no one knows when it was abandoned. Judging by the air-photos I could get, I think it was abandoned before 1930s, but I am not sure. Could anybody here help me? I don't need the exact year, as long as I could narrow it down to a decade, it is good enough for me! Thanks!