Found this record:
Name: George Parker
Source Publication Code: 6220
Primary Immigrant: Parker, George
Annotation: Record of 20,000 very early immigrants, with much relevant information. Taken from Patent Books 1 through 5. Title page states, "In 5 volumes," but up to 1979 only three had appeared. See nos. 6221 and 6223 for second and third volumes, published in 1977 and 1979. Issued originally by Nugent in parts between 1929 and 1931; the parts were then largely incorporated in this work, no. 6220. Stewart, item no. 9025, compiled the article, "Ancient Planters ," pages xxviii-xxxiv.
Source Bibliography: NUGENT, NELL MARION. Cavaliers and Pioneers: Abstracts of Virginia Land Patents and Grants, 1623-1666. Vol. 1. Richmond [VA]: Dietz Printing Co., 1934. 767p. Reprinted by Genealogical Publishing Co., Baltimore, 1983.
Details will probably be found in the Source Bibiliography.