James Pedraza Stephen
This person does not seem to have a record created for him. He has a CWGC record: http://www.cwgc.org/find-war-dead/casualty/540857/STEPHEN,%20JAMES%20PEDRAZA
and another record which comes up when I search for records on your database.
I got to this point when following up some information on this page, sent to me by Serge Comini (président de l’association Abbaye de Beaupré Étude et Sauvegarde du Site) relating to another matter.
I have added to the life stories of the other two pilots mentioned, but cannot find a life story for "Jimmy" Stephen.
Melanie Smith commented
Thanks very much for that, Richard. I don't know why his name didn't come up when I searched on J Stephen within the RFC/RAF - I thought I looked quite thoroughly! But anyway that's great, much obliged.
Richard IWM Volunteer commented
his page is here https://livesofthefirstworldwar.org/lifestory/4248587
I'm guessing when his card was transcribed the transcriber couldn't read his middle name and so settled for just James P Stephen, I have attached the CWGC record to his page and updated it