I am not researching this family, but have a little information from one of my books "Historical Atlas of Westmoreland County, Virginia" by David Eaton, 1942:
"Mrs. Joan Powell patented 288 acres of land December 19, 1650, adjoining on land of William Reynolds, 'at the cost of her late husband, Robert Philpot, Gent. deceased.'This 288 acres of land descended to Samuel Bonum, who wills to his three sons, Samuel, Philpott and Daniel.Samuel and Philpott sell their interests to Daniel, who wills to his son Samuel, who died without heirs; then to nephew Thomas Bonum and his wife, Sarah, who sell to Willoughby Newton, January 7, 1750.John and Michael Powell of Boston, Mass., settled in Virginia, John in Westmoreland County.Reference is made in deeds that he patented land in Westmoreland County adjoining Phillpott's, but no patents to him appear in Richmond Patent Office.John Powell married Mrs. Joanne Philpott, widow of Robert Philpott.Joanne and Robert Philpott had three children, Captain Thomas Philpott, Rebecca Philpott and Margaret Philpott.Rebecca Philpott married, first, a Mr. Thomas; second, Josiah Pitt.Margaret Philpott married Samuel Bonum, Sr., before 1670.John Powell died before 1668, but his will was not probated until about 1678 and, of course, is among the missing wills from 1670 to 1691."
On another page: "...whereas John Powell, Patent, and devised same for life to wife Joane, and she dying, and after her decease to the children of his two daughter-in-law (stepdaughters), Rebecca Thomas, and Margaret Bonum, equally to be divided between them and the said Joane dying the said land legally came into and vested in the children of the said Rebecca & Margaret & whereas the said Rebecca Thomas had only one daughter, named Rebecca, now married to James Orchard, and the said Margaret Bonum had children, Sarah, since dead, Samuel, Margaret, since intermarried to Wm. Rust, Jr., decd., Thomas, & Rebecca Bonum since intermarried with George Eskridge, now 150 acres came to (James) Orchard....."