I am the great great granddaughter of William Joshua Gallop.
In a direct line through William Curtis Gallop, to Edward Curtis Gallop, to Josephine Curtis Gallop, My Mother.
It would appear that my G G Grandmother was Maria, Williams first wife . He then went on to marry Emily Mullins\Mullings .
This is what I know for certain. I would welcome any more information , it is complicated in that most relatives repeated the christain names through their children.