ive caught 2 in Gen II(Gyarados and Ledyba), and 2 from Gen II eggs (cleffa and Igglybuff)
ive caught... about 10-12 in generation III, 2 machops(and machoke and Machamp), torkoal, crobat & Golbat, Zigzagoon, Mahuikita, Geodude, and a few others)
and 2 in Generation IV Ponyta and Nosepass (and bidoof, but that was in a Generation III hack and was actually a skinned Zigzagoon)