You might try USDA.  Its Farm Service Agency (and predecessor agencies: ASCS, CSS) have been using aerial photography for more than 50 years.  The URL for its aerial photo lab is:

  ----- Original Message ----- 
  From: Bill Casey 
  To: [log in to unmask] 
  Sent: Tuesday, April 03, 2007 4:10 PM
  Subject: [NYHIST-L] Air Photos by the "Mason Flying Service"

  I have been looking for air photos taken by photographers from airplanes in the Central New York region.

  An early source of photos is "Mason Flying Service"  Air Photo from Geneva, NY.  the Geneva Historical Society tells me that the Mason Flying Service was no longer listed in the Geneva Directory by 1950.  I have not been able to locate anyone that knows what happened to them or where their negatives might be housed.

  Bill & Joanne Casey
  Casey Organic Dairy Farms
  PO Box 36
  1136 Berry Road
  Apulia Station, NY 13020
  315 810-4190
  [log in to unmask]

  See what's free at