Birth years from 1725 to 1730 are seen for Robert - all are guesstimates.
Robert married Judith Joyner, daughter of Philip Joyner. She was born 1732 in Albemarle, and died 1803 in Jefferson Co TN. Robert then married Rachel West 13 Nov 1804 in Jefferson Co TN.
In 1761, Robert's father-in-law, Phillip Joyner made bequests to five children of Robert & Judith, indicating the couple had been married probably at least 10 years. This would necessarily place him as one of the oldest children.
Robert's children moved from Virginia to Tennessee in the earliest years of settlement. They lived east of Dandridge TN on the French Broad River
Children listed on a Find-AGrave memorial #50201244 include:
Robert GENTRY and Judith JOYNER were married in 1754 in Albemarle County, Virginia. Judith JOYNER was born in 1733 in Albemarle County, Virginia. She died in 1803 at the age of 70 in Jefferson County, Tennessee.
Robert GENTRY and Judith JOYNER had the following children: