Two snapshots that might feel at home in a Ransom Riggs book

These two found snapshots could be a part of the universe in Ransom Riggs' two novels built around vernacular photos — Miss Peregrine's Home for Peculiar Children and Hollow City. Photos that come with no captions or identifying information always have an air of mystery to them.

Tambourine Girl
Scribbled on the back in pencil is "1942." The license-plate number is 15093, but I can't make out what state it's from.

Bicycle Boys
There's no information on this tiny snapshot. What can we tell from the clothes they're wearing? Is the person on the porch related to the boys?