I guess this was taken just after WWI.
Scroll down for a who's who, but the overall situation here is that the couple on the left is my grandfather on an early date with my grandmother. Arthur Genest, my grandfather, was a French-Canadian Catholic from a family of twelve(?). His beach date here is Mildred Sparks, a WASP-DAR-Yankee. Arthur is backed up by two other boys in the photo, both his brothers. Mildred is backed up by the two stern chaperones huddled under the umbrella. Her mother and and grandmother (i.e. my great-great grandmother), seem to have brought chairs to the sand and are risking heat exhaustion in about 20 pounds of beach inappropriate garb and beach inappropriate demeanor. Keep an eye on those youngsters!
Details from the photo:
Mildred Sparks is modeling a Princess Leia hairdo. Art Genest, trying here to propagate some DNA so I can come into existance, shows here that the DNA in question includes the genotype for bad skin. :
It's weird to see my acne on a different person's chin, sixty years before it appeared on me. (I wonder what arcane rituals he followed to purge those spots!)
Here we see Florence ___ and Arthur's brother Al Genest:
Here are the two dour Yankee chaperones:
Shoe of chaperone.