Dr. Francis J. Trembley (1904-1978) professor emeritus joined the Lehigh University faculty in 1928 as instructor in biology, as his career progressed at Lehigh, he became professor of ecology - considered a pioneering ecologist. This collection contains some of his personal memorabilia reflecting his abiding tenacious interest in nature.

This collection contains documents from the early movement in bird conservation and rapture education efforts in the United States. The Hawk Mountain Sanctuary (Pennsylvania) is the world’s oldest wildlife sanctuary exclusively committed to protection and observation of birds of prey.