Yes, I have a lot of information as well as a couple of contacts who provided most of that information. Their trees are here on ancestry along with pictures too. Email me at email@example.com
and I can forward your request/questions to them. I am sure they would get back to you as soon as they can.
There is one thing I can share with you off the top of my head... David Robert married Sophia Eidson. She later married a Kennedy and their daughter Lydia G Kennedy married Samuel Galloway of my husband's line, making Sophia my husband's GR GR Grandmother.
Samuel's father is Zachariah, brother of David Robert.