Description: This paper undertakes to give dossiers of essentially all the actuaries who entered the profession in Canada or the United States up to about 1872. It includes those who died or left the profession before the Actuarial Society of America was formed in April 1889, and those who, in due course, became Fellows of that Society when or after it came into being. The paper also mentions some of the conditions under which the Actuarial Society was organized, and suggests that a yet fuller story of how the actuarial pioneers coped with circumstances and events of more than a century ago would be a desirable record to document. From Transactions of Society of Actuaries 1984, Vol. 36.