Yeah, it can be tough if you didn’t get an evaluation to dig up the information. In some cases units no longer exist or have moved.
But I did research. Reached out to old buddies who remembered the names of my OBC and flight school CO’s. Sometimes the phone numbers are no longer valid and I put that down. Where units where disbanded I put the address I had but then someplace I put the fact that it was disbanded.
I’m on the road right now but should be home the 15th. PM me and I can give you a redacted copy of what I did.
I also recommend spending the money to get the app professionally reviewed before you hit the submit button.