Fourth.--For the more effectual settling of the lands within the province the grantees shall settle on every five hundred acres one family at least with proper stock and materials for improvement of the said lands within two years of date of grant.[73] [73] The last of the conditions above quoted was a somewhat variable one, and is sometimes found in this form, "The grantees shall settle one-fourth part within one year, in the proportion of one family of Protestants (to consist at least of four persons) to every thousand acres, one-fourth part within two years, another fourth part within three years, and the remaining fourth part within four years, otherwise the lands remaining unsettled to revert to the crown." The arrival of so considerable a number of English speaking inhabitants as came to the River St. John in the course of a few years after Lawrence had published his proclamations, rendered it necessary that measures should be adopted for their government. When Nova Scotia was divided into counties, in 1759, what is now New Brunswick seems to have been an unorganized part of the County of Cumberland. For a year or two the settlers on the River St. John were obliged to look to Halifax for the regulation of their civil affairs, but this proved so inconvenient that the Governor and Council agreed to the establishment of a new county. The county was called Sunbury in honor of the English secretary of state, the third Earl of Halifax[74] who was also Viscount Sunbury. [74] It was after the same English secretary of state that the city of Halifax was named in 1749.