In the 1980s, a trans organization called the Human Outreach and Achievement Institute defined "bigenderist" as a type of androgyne, with the latter being defined as "a person who can comfortably express either alternative gender role in a variety of socially acceptable environments."
- "Brochure for the Human Outreach and Achievement Institute." Ephemera. 1980. Digital Transgender Archive, https://www.digitaltransgenderarchive.net/files/8g84mm373 (accessed October 02, 2020).
- The Human Outreach and Achievement Institute. "Abstracts of a Symposium on Gender Issues for the 90s (Jul. 20, 1988)." Pamphlet. Digital Transgender Archive, https://www.digitaltransgenderarchive.net/files/5q47rn80n (accessed October 02, 2020).