My grandmother is from Selby, SD, and by sheer accident, I ended up going through Selby. There's not much in Selby.
I scoured both of the cemeteries in town looking for a familiar last name, but no luck.
Selby doesn't have much other than a decommissioned opera house and Mr. Bob's Drive-Inn. My lunch at Mr. Bob's was depressing. A piece of dry chicken on a bun and a "strawberry milkshake" which I guess they took to mean a "strawberry smoothie". Not the same. Honestly, I'm not surprised my grandmother skipped town.