In the Virginia istorical Genealogies, under "Mallory of Hutton and Studley, Yorkshire and of Virginia, on page 114 it seems to be clear that Thomas Mallory's wife Frances is the mother of his children, as it lists them as such - not "Jane".
I have uploaded a copy of this page in the "Sources" section.
Please change the lineage to show this correction, unless someone has a better source proving otherwise.
Thanks.