Seegee:
I can get first names generally, but surnames stump me, and I think it was Rue on another site who suggested using a street directory for inspiration with surnames.
Well, to me coming up with names (first and last) is part of the fun in writing a story.
Since these spanking-oriented accounts aren't going to be published as 'serious' fiction, I like to fool around with names, like having all the characters' last names (Gondor, Rivendell, Shire, etc.) be locations in Middle Earth (
The Lord of the Rings), or making the characters' combined names into slight variations of those found in
The Hunger Games.
As for the popularity of particular first names within a given time period, there can always be exceptions to the general tendencies.
In a story wherein a fifteen-year-old girl has the authority to paddle her seventeen-year-old boyfriend's bare behind more or less as she sees fit, I'm not going to worry too much about 'loss of credibility' due to her name being unusual for a particular era...

--C.K.