I have to disagree with you. I have been here for a few years. I could agree with you. If you had some information on the subject.
I really didn't expect to find what I did with the info you gave. Which is next to nothing. You don't have any info for them to go on. Even with what I found without something to back it up with more info. It would be almost impossible to distinguish between them.
You are guessing that he was in the Royual Flying Corps. If you had a Service or Regimental no. His birthday would be helpful. You need more info. Then they will be able to help you.