Funny you'd think that, or wonder about time... you're supposed to, kinda. Four of the pics are contemporary, the girl is in the mid 90's. One of my other batches has a shot from 1979, the three old folks on the railroad tracks.
I try to steer clear of pop culture,or even things in the background that would date the image definitively. Hence, the small M and a 50mm. Make sense?

Reminds me of the "flower girls" and the hippie bus era and the other shots in this set have very intriguing expressions as well ...just curious-when were these photos taken, Gino?