In 1963, he and his wife taught anthropology courses and in 1964 formally created the first Department of Anthropology in Colombia at the Cambridge University in 1970 and also later became an adjunct professor in the Anthropology Department at the University of California-Los Angeles.
In 1963, he and his wife created the first Department of Anthropology in Colombia at the Universidad de Los Andes. Gerardo received a visiting fellowship to Cambridge University in 1970 and also later became an adjunct professor in the Anthropology Department at the University of California-Los Angeles.