The NASA Glenn History Office has undertaken the task of documenting many of its historic facilities. Histories of the Icing Research Tunnel, Plum Brook Reactor Facility, Rocket Engine Test Facility, and Altitude Wind Tunnel have been published. These books demonstrate the significance of each facility to the nation's aerospace community while sharing personal stories of some of the unsung researchers, mechanics, and technicians who performed groundbreaking research and made the giant facilities run. It is hoped that this publication continues this tradition. The NASA Glenn History Office has undertaken the task of documenting many of its historic facilities. Histories of the Icing Research Tunnel, Plum Brook Reactor Facility, Rocket Engine Test Facility, and Altitude Wind Tunnel have been published. These books demonstrate the significance of each facility to the nation's aerospace community while sharing personal stories of some of the unsung researchers, mechanics, and technicians who performed groundbreaking research and made the giant facilities run. It is hoped that this publication continues this tradition. This publication documents the Propulsion Systems Laboratory No. 1 and 2 prior to their demolition.