Alumni Earl Swift, Gary Morse and Amber Simpson are among the featured speakers during this weekend’s six ceremonies.

Alumni Earl Swift, Gary Morse and Amber Simpson are among the featured speakers during this weekend’s six ceremonies.
Alumni Earl Swift, Gary Morse and Amber Simpson are among the featured speakers during this weekend’s six ceremonies.
Alumni Earl Swift, Gary Morse and Amber Simpson are among the featured speakers during this weekend’s six ceremonies.
The Saint Louis Zoo and Missouri Department of Conservation have taken an interest in her work.