Late 1870s I think for the young lady, maybe early 1880s but the skirt looks more like 70s. The men probably about the same but men are harder to date because their clothing didn't change rapidly. The oval vignette was a popular portrait style in the 70s.
It may be a sort of legend about the fan, but I have heard something about it meaning chastity or an unmarried status at least.
Cheers,
China