During the score of years required to develop the naturalist branch, the protective division was not marking time. In 1920 James McBride became the first Chief Ranger. Since then Samuel Tilden Woodring, George F. Baggley, Francis D. LaNoue, Maynard Barrows, Curtis K. Skinner and Otto M. Brown have served. Nelson Murdock became Chief Ranger in 1960. Under their supervision the character of the personnel has been gradually changed. Originally a mountain scout and ex-soldier organization, it is now composed of college graduates. These men divide their time and effort between applying the principles of forest and wild life management with those of public relations. Physically robust, mentally alert, sociable and understanding, they properly exemplify the traditional informality and hospitality of the West. Of course there have always been a few political appointees present among the seasonal Park rangers. This makes the group quite varied, somewhat in keeping with the universality of the tourists themselves. Many a city lad has had the time of his life in his fleeting role as a “ninety-day wonder.” Still there has always been a restraining influence reaching out from the chief ranger’s office. A young man is not allowed to become too self-conscious over his uniform or badge of authority. The Superintendent presides over the protective and naturalist divisions and all other units of the National Park Service in Yellowstone. Only four men have held this position since the army withdrew in 1918. C. A. Lindsley was succeeded by Horace M. Albright in 1919. Mr. Albright served for ten years, after which Roger W. Toll took office. Edmund B. Rogers was appointed May 25, 1936, and served until November 1, 1956, when Superintendent Lemuel A. Garrison succeeded him. The superintendent’s office is the nerve center of the Park. From there all activities are co-ordinated. This official is also the liaison man with the National Park Service; he makes all estimates and recommendations; he contends for assistance from cooperating agencies, such as the Civilian Conservation Corps, Emergency Relief Administration, and Public Works Administration.[347] The Public Health Service, the Geological Survey, and the Fish and Wildlife Service each lend cooperation in their special fields. It is also his function to consider many letters of introduction and requests for special favors. He is expected, personally, to welcome numerous delegations and important national and foreign personages. Information and courtesies flow from his presence continuously. He must determine the bounds of concessionaires, hear major complaints, oppose all invasions by mercenary interests, and, if necessary, labor to expand the Park’s boundaries. [Illustration: Madison Junction Historical Museum.]