Orr left the Santa Barbara Museum of Natural History in 1969, after more than thirty years.

His 1968 monograph, “Prehistory of Santa Rosa Island,” published by the museum, remains a foundational document in Channel Islands archaeology.

His legacy was carried forward by John Johnson and others, who applied the improved methods of later decades to the materials Orr had documented and preserved.

The Early Holocene After Arlington Springs — What Came Next On The Island

The Arlington Springs individual did not live in isolation on the island.

The broader archaeological record of the Channel Islands documents a sustained human presence extending from the terminal Pleistocene through the early Holocene and beyond.