[2] He visited Gladysvale after a butterfly collector from the Transvaal Museum reported a "human mandible" in the wall of the cave.

In 1946 Phillip Tobias led a student expedition to the site where a fine baboon fossil was recovered.

[3] In 1948 Frank Peabody of the Camp-Peabody expedition from the United States spent several weeks at Gladysvale but failed to find any hominid remains.

[4] Tools have also been found with the most spectacular being an Acheulean handaxe (pictured), recovered from 1 million year old sediments.

Gladysvale was one of the first sites in Africa to be 3-D digitally mapped by Peter Schmid and students from the University of Zurich.