Henry Green(e) 1780 of Granville County NC

I am looking for information on Henry Green(e) of Granville County NC. He died ~1806(has will listed in county records) to 1810. He purchased land in 1777 and then received a NC land grant in 1780. His children listed in the 1806 will were Nicholas, William, Daniel, Elizabeth, Mary, Rebecca(Rebeckah), Sarah. A wife was not listed.I am at the "brick wall" with him b/c I cannot find any other evidence of him in Granville County prior to 1777. Thanks! :)