I have never seen any proof that Sarah was an Eskridge, but it appears possible. As to William he did not drop off - he died.
Westmoreland WD 3-126, Will of WILLIAM CARR, +/30/1702/3, 2/24/1702/3 My dwelling to son Joseph; dau. Sarah [THOMAS] the plantation in possession of William Garner. dau. Elizabeth plantation where David Thomas lives 100 acres by estimate; daus. Hannah 100? acres Forest of Nomini, Martha 100 acres Nomini, Mary 150 acres Nomini, Ann 70 acres Nomini adjacent to Mary; Jane [COLEMAN] Carr the remainder of the land I bought of JOHN EARLE* if she lives to 18; wife Sarah; friends Neighbor Daniel McCarty and George Eskridge trustees and guardians. [My abstract]
William Carr, d. 1702 father of Elizabeth who married John Bailey, Jr. Mary who married Wm.IV Walker, 1680-1733. Sarah m. James Thomas. Jane m. James Coleman Martha m.Wm Lane. Ann m. Jacob Remy. Hannah m. Robt. Tidwell.