I stumbled across a post on Sort Your Story while reading Geneabloggers this morning about identifying your family photos... and realized a similar idea could be useful to Luxembourger research. If you have unidentified family photos, I like Lorel Kapke's ideas about posting them online. But for Luxembourger research, there's something else you should consider.
Like many American immigrant groups, Luxembourgers like to buy from their own - even if this meant traveling miles. This even applied to photographers. A Luxembourger photographer may print photos of the residents of his home town, but he also may print photos of a distant relative's or a friend's Luxembourger family. Since the immigrant population was relatively small in some areas, a Luxembourg photographer's name can be a valuable tool. Those unfamiliar faces may be found at the point where his family tree intersects yours.... And if that doesn't work, you can always post the photos to Find A Grave or a message board!