Project Elephant, though less known, started in 1992 and works for elephant protection.

Elefriends, the elephant protection charity, publishes adult and junior newsletters.

Elephant protection groups argue that this legal sale increased demand for ivory, much sought after throughout Asia for its decorative qualities, boosting the black market.

Smith worked with People for the Ethical Treatment of Animals (PETA) to draft the proposed Elephant Protection Ordinance, which if adopted would mandate humane treatment of elephants within the City.

Ms. Rouse is a stepdaughter of Susannah Rouse, who founded and directs an elephant protection program in Nairobi, Kenya, and of Michael Halpert, the chief executive of PhilaHide, a commodity trading business in Philadelphia.