Simpson had acquired what looked like ancient scrapers from a site in the Calico Hills and showed it to Leakey .
In 1959 Louis Leakey , while at the British Museum of Natural History in London , received a visit from Ruth DeEtte Simpson , an archaeologist from California .
archaeologist had acquired what looked like ancient scrapers from a site in the Calico Hills and showed it to Louis Leakey .
In 1959 Louis Leakey , while at the British Museum of Natural History in London , received a visit from Ruth DeEtte Simpson , an archaeologist from California .