35 years of continuous work by government and industry and the public have led to a very sophisticated system of emission controls. It all had to start someplace, however, and it was not created by a bolt of lightning from on high. This paper is intended to recall and perhaps to honor those who participated in the hectic early period. When instrumentation, basic knowledge, and primitive devices competed for the attention of these pioneers with strident demands from policitions. They learned cooperation the hard way, but they achieved the initial objective.