Adam Leftwich (note spelling) Calfee was the son of John and Virginia Anna Miller Calfee. John Calfee, b. 1814, was a son of William (1784-1853) and Nancy Davis Calfee of Pulaski/Wythe Counties.
I have a copy of pages from the family Bible of William and Nancy, which gives their marriage date, the dates of their children (John was born 21 June 1814), the spouses and marriage dates of their children, and the death dates for William, Nancy and their daughter Jane.
It also lists -
"Record of John Calfee's Children:
William H. Calfee was born July the 11th 1847
Mary Margaret Calfee was born April the 29th 1849
Adam Leftwich Calfee was born the 18th November 1851
Thomas Poge Calfee was born the 14th November 1854."