University of Texas
| Name | Area | Department | Start Year | Stop Year | Advisor |
|---|---|---|---|---|---|
| Ruth E. Timme | vascular plant systematics, Polemoniaceae | Botany | Randy Linder (grad student) | ||
| Billie Lee Turner | Asteraceae, Systematics | ||||
| Justin K. Williams | Apocynaceae | 1993 | 1999 | Billie Lee Turner (grad student) |