US Forest Service contact

[DanFrink]

I'm looking to get calibration information for an aerial survey done by the USFS in 1942. Can anyone point me in the right direction for who to contact? I realize this is a long shot, but still need to try.

Thanks!
Dan

[CBarrett]

I take it you might have found this already via google, but if not, it may be a good starting point:
https://www.archives.gov/research/guide ... s/095.html