Judith Flynn Chapman is a Harvard anthropologist who has presented at conferences with Bailey.

She writes on hormones and behavior

Other connections: economist Terence C. Burnham's, whose dissertation advisor was Edward O. Wilson, the great-granddaddy of them all in sociobiology, evolutionary psychology.

She and Bailey have been seen together at the HBES conference.

Below is her Amazon shill review:

Engrossing and very readable , October 25, 2003

Reviewer: jflynn@fas.harvard.edu (see more about me) from Cambridge, Ma United States

As a scientific researcher interested in sex differences and the organizational effects of gonadal steroid hormones on the brain, I found this book immensely interesting and readable. A great overview of the current literature about the biology and early childhood correlates of male homosexuality and transgenderism. I would recommend this book to anyone interested in the biology and ontongeny of gender. In fact, I might use if for a course next year.