Membership in the Colonial Society of Pennsylvania (established in Philadelphia in 1874) is limited to males over the age of twenty-one descended from a male or female who settled in any colony of America (now the United States) prior to the year 1700. Membership in the organization is limited to 300 persons. This volume is essentially an alphabetically arranged list of members of the Society in the year 1950, showing the direct line of descent of each member to his colonial ancestor, the earliest known date of the ancestor's presence in America, and the year each member was elected to the Society. Preceding the roster of members are various lists of Society by-laws, officers, and committee members, all of which serve to paint a picture of the history of this esteemed organization. At the back of the volume the reader will find an alphabetically arranged index of the pioneer ancestors of the Society.