I see several conflicting pieces of information on the various files/charts on RootsWeb World Connect about the John Smith (died about 1761) who married Mary Chew....a daughter of Larking Chew, Junior and Mary Beverly. The John Smith who married Mary Chew was a son of Maurice Smith (born about 1691; died about 1750) and Elizabeth....probably Elizabeth Bird/Byrd. Unlike what some of the referenced "charts" show, that John Smith was NOT the son of the John Smith who married Elizabeth Grace Cox, nor was he a son of the John Smith who married Elizabeth "Lizzie" Marshall, nor was he the son of a John Augustine Smith.
The above Maurice Smith was a son of Lt. John Smith and his wife, the widow Mrs. Jane (Cock/Cocke) Jones (the widow of Rice Jones, Junior and a daughter of Nicholas Cock/Cocke). Lt. John Smith was a son of the Alexander Smith, who was in Lancaster Co., VA by at least the 1650s, and who died in Middlesex Co., VA about 1696.
The above Lt. John Smith should not be confused with his neighbor who was named Captain John Smith, and who was a son of John and Margaret (Unknown) Smith. We do not know at this time if these two neighboring Smith families were related to one another, but we have three living male DNA donors who all "trace back" to Alexander Smith....and maybe someday we can find a male Smith DNA donor who "traces back" to the "neighboring Smith family."
We know that the above two Smith families intermarried when the John Smith who was a son of Lt. John and Jane Smith married an Ann Smith (daughter of a Thomas Smith) who was out of the neighboring Smith family. One of the children of that John and Ann (Smith) Smith was a later/younger Maurice Smith (typically "styled" as "Major") who was born about 1727 (as I recall) and who died about 1795 in Middlesex Co., VA (leaving a will).
John Smith and Mary Chew had a son who was also named Maurice (among several other children). It is not known, however, if that Maurice Smith ever married and/or fathered any children (and that Maurice Smith did not seem to appear on any census in VA in 1810). Another son of John Smith and Mary Chew was named John Smith, and there are some clues that suggest that he was the John Smith who married Mary Dunn (daughter of John Dunn and Judith Edmondson) and who lived over in Essex Co., VA for at least a while. The rest of the children of John Smith and Mary Chew were Mary Smith (married Thomas Towles), Larkin Smith (married Mary Eleanor Hill) and Elizabeth Smith (MAY have been the Elizabeth Smith who married a John Chew....does anyone know for sure)?