I have been curious if there are any specific Historical Genealogical Photo Request Specific Forums / Communities out there that anyone knows about?
I am aware of the primary one for Find-a-Grave in which people request photos of gravestones and such, as well as one for ships which is of use for seeing what people immigrated on. I also know Genealogy.com also seems to have one but it seems to be very ill-frequented and not a lot of success.
My thought process is the following and why I ask: While searching Newspapers.com I came across several articles mentioning my relatives (some of which I have no photos of) and in some cases sketches, photos, or just physical descriptions of them. Specific examples are sporting events that someone may have taken photographs at or even a better example several members of my family have been in the clergy and conducted funerals and weddings, which at least for the later it is common for photos of the bride and groom to be photographed with the officiate of the ceremony.
I know in some cases I can contact local historical societies for sporting and community events, but they wouldn't likely have some of the more obscure events or large scale events where people are not identified (i.e. I'd have to find them in the crowd) as well as which someone might have remembered they photographed and have sitting in a box somewhere or on their computer (I for example have thousands of original photos in my possession).
I know there are stock photo agencies and the National Archives that are searchable which I have very limited success for historical specific historical photos for genealogical purposes, and have in some cases been successful searching Google Image Search and trolling Flickr for old family photos people have posted; none of these though facilitate a 'request' system for "Does anyone have a photograph from or of...".
The question: Where is a large enough and active community one can request a photo of a historical event or person and might within a reasonable time (a year or two) have a reasonable chance of getting a response from the community's users if well refined enough but not too specific of a request?