Thomas C Dyke married Sarah Hill, who was also descended from John Hill & Rebecca Spohr/Spahr.

Some ancestry trees have listed Thomas C. as descending from Isaac Dike and Susannah Spahr.
Therefore both spouses were descended from Spahr family.
They give a long history for Susannah. I would like to know where they got that.
But it is logical to conclude that Susannah and Rebecca were sisters as an initial guess.
Let me know what you find out.