Nardi Riviera - Actually the dates I quoted from ISWAP are not just US - the Junckers pilot mentioned from1927 was with Lufthansa. On their webpage they also have a list of the national "firsts" that they received from those of us who came later. I think you'll find 1927 hard to beat at least for an airline pilot.
Many of us in Europe have put some effort into recording the pioneering flights (eg first female fo, first female captain, first all female crew) that took place in the last 15-20 years. When I started flying in Europe we (female flightcrew) were rare enough that we almost knew each other - we knew that airline A had one & airline B had 3 etc... Luckily now the percentages have increased and I no longer even personally know all the women in my airline (25 - 30 out of 350).
WangEye - I went to an all girls school and with hindsight I agree it certainly makes a difference that the person who came first in maths or physics was always a girl - there was no suggestion we couldn't cope with the subject matter and we just got on with it!