I notice on your site for "Augustin Parla" it mentions Johnny Green.. One of the photos I have (2 actually) show a man, apparently Johnny Green, in Tampa bay with George Lawrence.
     News accounts list Green as taking Lawrence up to make a photo the area so I assume thats what this photo is with Lawrence with his camera and the pilot. the plane , a Curtiss, had just been purchased from man named Harry Powers who was a friend of Lawrences and is many photos of the Lawrence group there with the plane. So I suppose thats how Lawrence got involved with Green to make the photo..
     My question is, seems like this Johnny Green might be same person who made flight with Parla, unless there were other Johnny Greens around. But have not been able to find anything on either Green or Powers.
I don't suppose the family you worked with on Parla has photos...? Nothing shows on the site.
     Anyway, here's the Lawrence-Green photos. In overall photo Lawrence on left, Green next and some spectators apparently. The other photo has Lawrence with is pan camera