Thus it is evident that a large proportion of the landholders during and prior to 1635 had come to the colony under terms of indenture, either under the Company or with private individuals. Perhaps it would not be unfair to estimate this proportion at from thirty to forty per cent, but it must be distinctly understood that the matter cannot be determined with any degree of accuracy or finality. Some years later Governor Berkeley in an address before the Assembly, stated that hundreds of examples testified to the fact that no man in Virginia was denied the opportunity to rise and to acquire both property and honor.[4-53] Careful research tends to corroborate this assertion but it does not and cannot show whether the bulk of the early planters came to the colony as freemen or as indentured servants. During the years from 1635 to 1660 the process of building up a class of small farmers in large part from freedmen continued unabated. But the difficulties of the investigator in studying this period are also very great. Yet it is possible, by examining the names that appear in the land patents and wills, and comparing them with the list of headrights, to arrive at fairly satisfactory results. We find that of the 131 persons listed in the York county wills from 1646 to 1659 no less than twenty-five appear as headrights for others. Of these the major part became landowners, some of them men of influence in Virginia.[4-54] The Rappahannock wills for the years from 1656 to 1664 show a like result. Thirty-nine persons appear in the records, of whom seven came in as headrights.[4-55] There is always the possibility of error in identifying these persons for the recurrence of such names as Smith, Jones, Turner, Davis, Hall, the monotonous repetition of a few common given names, and the universal omission of middle names add greatly to our difficulties. Moreover, mistakes are apt to occur because of the transfer of headrights by sale. The free immigrant to whom was due fifty acres for his "personal adventure" might not care to settle on the frontier where alone unpatented land could usually be found. At times he sold his right and purchased a plantation in some one of the older and more advanced counties. It is not conclusively proved, then, that a certain person came as a servant merely because he is listed as a headright. On the other hand, the fact that it was the custom to set forth such transfers clearly in the patent itself, justifies the conclusion that in the cases where no statement of the kind is made, the headright for which the land was granted usually came in under terms of indenture.