Originally Posted by
wiggin
GGT, it's sometimes interesting to see where your family comes from if you're a bit of a mutt or have poor family records. It's also nice to see if family legends about g'g'g'ancestors are in any way substantiated by reality. My sister, for example, did the basic sequencing which easily showed that one story about my mother's side and ancestry wasn't true. I'd bet Elizabeth Warren would have saved herself a lot of headaches if she'd been able to do the same a few decades ago. It's just interesting and informative (and sometimes medically useful!), but hardly makes anyone 'feel better'. There are also websites that sell information about e.g. immigration records and the like, which are also not particularly evocative like photos but still gives some interesting family history and context.
A few years ago I ran across an old photo of my grandfather in his US Army uniform. I personally didn't find it added to a sense of belonging or anything else, but I did find it interesting - from the patches and insignia I was able to figure out much more detail about what unit he was in during the war. This information was hard to get otherwise because he was quite reticent to describe much of his experiences of ~6 years in the Army other than to talk about inconsequential asides like the food; I once tried to request his service record from a FOIA submission, but it turns out that his records (and many millions of others) were lost in a fire some years back. So this gave me some useful clues to figure out more.
Really, it just boils down to people being interested in how their family fits into history.