Sister to Sarah, (the previous gravestone), Little Sally Gallup, daughter of Christopher and Martha GALLUP, was born 3 July 1798 and died 29 May 1800 in her second year of age.
The Barbour Index tells us that there were two little girls named Sally so the gravestone here is the first little girl with this name. It could be that the second listing here is really supposed to be the little girl named Sarah.
The stone reads that the mother's name is Polly, but we know her name was Martha and was known as Patty.
It is good to be able to read the gravestones, even if the actual records seems confused.