Administration of the new monument was placed under the control of Zion National Park. A stone ranger cabin and the Sulphur Creek bridge were built and some road work was performed by the Civilian Conservation Corps and the Works Progress Administration. Historian and printer Charles Kelly came to know NPS officials at Zion well and volunteered to watchdog the park for the NPS. Kelly was officially appointed custodian-without-pay in 1943. He worked as a volunteer until 1950, when the NPS offered him a civil-service appointment as the first superintendent.