Hi there 1966Lulu.
Hard to say with these photos...but lemme give it a try.
1. First pair looks like SSPs, but I don't know if I am seeing something similar to an imitation pearl, near the drill hole area.
2. Guessing photo 2 and 5 are the same? Same box, shape & pendant style? Could be SSPs, but I don't see the size, so it could be "anything". But this -or these- look like pearls.
3. The black pearl seems to have some sort of plastic coating falling off...that would make me believe it is an imitation, probably a "Shell Pearl".
4. Pair over red background resemble freshwater button pearls, but this background color is bad to see more subtle pearl features.
I all: better photos would be appreciated.