In 1950 California was the only state with voluntary registration of social workers. The collection reflects the work of the small, unpaid, and geographically scattered Board of Examiners as it set, tested and graded twice yearly examinations, struggled to hold frequent meetings despite skimpy travel allowances, and to run an effective advocacy and promotional program from its San Francisco office staffed by one executive secretary with, initially, only part-time clerical assistance. The executive secretary, when not personally packing examination booklets into wooden boxes for delivery by Railway Express to sites around the state, managed to get access to "the new IBM machines" at the Department of Health, where he undertook statistical analyses. Beyond such detail, the correspondence of the Board in the early 1950s reflects constant attempts to secure backing from leaders in the social work profession. Records for 1952-53 reflect not only the anxieties and objections raised by the attempt to restrict the use of the term "social worker", but also problems faced by the Board of Examiners and leaders in the profession when they attempted to write the restrictive bill, which would clearly require definitions of the terms "social work" and "social worker". With these papers, which reflect a significant phase in the development of social work as a profession, are also collected records of the Committee on Social Work Education of the California Conference of Social Work for the same period. The correspondence, work and described activities of the members of the same small group of social work leaders, educators, and legislators, are to be found in both collections. Maurice Ostomel, the donor of these papers, had an extraordinary dual role in the proceedings as chairman of both the Board of Social Work Examiners, from 1949-53, and of the Committee on Social Work Education, from its inception in 1951 until 1954.