On Star Trek: The Original Series, A&A officer was used as an abbreviation for archaeology and anthropology specialist on federation starships. Aboard the original Starship Enterprise. When the Enterprise visited the planet Pollux IV in 2267 and Talin IV in 2269, Lieutenant Carolyn Palamas was the A&A office. On the Yamato-E Dr. Ramsey occupied this position until 2365 when the ship was destroyed. On the Enterprise-D, Lieutienent Marla Aster was A&A officer until she died in 2366.

Found in:
"Who Mourns for Adonais"
"Prime Directive"
"Contagion"
"The Bonding"