A few months ago I uploaded a folder of my father's wartime photos to Flickr, including descriptions and tags where possible.
This shot was taken by him, sitting in the rear gunner's seat of an RAF Vickers Vincent single-engine biplane along the route from Khartoum to Cairo, early in May 1939.
e004 by
Sandeha Lynch, on Flickr
The flight is recorded in his work log along with the pilot's name. A few of the negative sheets were also marked with names so I was able to add tags to some.
Thanks to the tags, someone contacted me from Australia to say that one of the photos is of his dad. His father had died many years ago and later all his father's records were lost in a fire so he was now doing some research to try and build up a picture of his life.
Turns out that his dad and my dad were good mates and worked together in Sudan and Egypt in 1939-41. They were both Intelligence Officers with the RAF.
He was also the pilot on this flight - New Zealander, Sqn Ldr Dudley Marsack, RAF, at the controls of the Vincent.
This has to be what the Interweb is for, isn't it ... so I could become friends with someone whose own father was a friend of my father, 80 years on.