Paradisa Pink (17 Rose) was the first in 1991. BUT, Lego used Medium Dark Pink (16 Pink) in Modulex parts as early as 1983!
There is also 9 Light Reddish Violet, which replaced 17 Rose in 1994, before being replaced in turn by Bright Pink (222 Light Purple) in 2004. This middle pink was close to Paradisa Pink, but less yellow.
There are officially two versions of Dark Pink: 22 Medium Reddish Violet and, after 2004, 221 Bright Purple. These are almost identical.
Clikits used 295 Flamingo Pink for a few parts in 2006. It's too bad that they didn't make more parts, it's really a nice color!
I have a fleshy-pinkish Automatic Binding Brick from the early 50s, but this was before Lego started giving their colors names and numbers.
Barring transparent or more purplish/reddish colors, that's all the pinks I know of. I'm curious about your sources for the 1949 and 1978 dates. I've been trying to compile all color information here: http://ryanhowerter.net/colors