I'm not sure to whom which 'younger' William you are referring. William died in 1783. His son, William, married Mary
Laws and then Ann Young. I know there was an Elizabeth
Catlin that married a William Windal but I'm not sure it was this one. One of this William's sons, William, married Mary Snow in 1847. I don't know if she died or divorced him but he ended up marrying Ellen
Tucker. So only one William married Mary
Laws to my knowledge.