https://ru.wikipedia.org/wiki/Светлана#Антропонимический_взрыв_1920-х_годов
Anthroponymic explosion of 1920s.
Briefly: after the religiously limited set of names, in 1920s there was a mass trend to give non-religious names to children, taken from various sources, like literature, movies, and just constructed.
The woman above was named not after herself.
Probably, some of the 1925 movies was enough popular to cause a chain reaction of Svetlanas from top to bottom.
P.S.
But the progress didn't stop on that.