Juno Jordan was born in 1884. She trained as a dentist, graduating from Denver Dental College in 1905, and practiced dentistry before her interests turned decisively toward the occult, metaphysics and, in particular, the numerology system L. Dow Balliett had set out in The Philosophy of Numbers (1908). Jordan studied directly under Balliett, becoming one of her most committed and systematic students, and carried Balliett's tone and color based Pythagorean framework forward into a body of work grounded far more heavily in accumulated case observation than her teacher's had been.
She founded the California Institute of Numerical Research, which she ran for approximately twenty five years, using it as a base for what she treated as genuinely systematic research: collecting and comparing large numbers of individual numerology readings against life events to refine and test the interpretive framework she had inherited from Balliett. She died in 1984, two months short of her hundredth birthday, having remained active in the field for most of the twentieth century.
Jordan's dental training gave her, like Barbara Brennan's physics background in a later generation, an unusual professional grounding among numerologists of her era, and she brought a comparable insistence on methodical observation to a field more often built on individual intuition. Her California Institute of Numerical Research functioned less like a mystical school and more like a long running applied research practice, collecting and comparing charts against reported life outcomes over its roughly twenty five years of operation.