Joanie Grant bears a resemblance to Doris Gohlke (I know I've got some photos of her on the board somewhere, I believe on this very thread), and she's certainly very attractive although I think Doris has the edge. No photo of Doris here because of the two-link limit, but you can look her up using the search box on the Home Page to save time. Offhand, I can't recall any other photos of Joanie in Humorama.

Joanie Grant, from the October 1959 issue of
Breezy.
With her outstanding bosom, you'd have to expect that
Joanne Latham would have had a successful modeling career, and she certainly did - in England at least. How she got into Humorama I don't know. I believe that when I researched her at the time I found this years ago, I learned she had been a popular "Page Three" girl, that is, a big busted model of the kind used in the British tabloids of the period to hold the interest of male readers with presumed short attention spans.
Commentary or
LeMonde (two publications that eschewed the use of photographs) they weren't.
Let's see now what captivated those readers back then that they were sure to read the mag at least to page three:

Joanne Latham, from
Popular Jokes (Feb. 1980, at which time she'd have been nineteen).