1. Texas International (because I have a timetable of theirs with this promotion in my collection).
3. Aero America. They also operated out of West Berlin with charter flights to the Mediterranean.
5. Eastern
8. BAC One-Eleven
13. British United. The order was signed by the Managing Director of the airline, who a few years later walked out and set up his own airline - it was, of course, Freddie Laker.
15. I think she was the first black flight attendant on a US airline - note that Imperial Airways, BOAC's predecessor from the 1930s, had colonial stewards back in the 1930s on their long-haul routes.