William Pentecost, son of William Pentecost of Dinwiddie Co., and grandson of George Pentecost of Prince George co. Va., married Delilah Wood, dau. of John and Francis P. Wood. Their dau. was Selah Pentecost.Ethelred Wood was brother to Delilah.I knownothing about the Mayfields, but you can check out on Pentecost.org site about Greens and Pettypools connected to these families. I have had trouble getting Pentecost.org to come up sometimes.You could go on Google search engine and put in "William Pentecost and Delila" and their family sheet will come up.From there you can get to other family names and surnames know to be connected to this family.
I hope this helps.Let me know if you need further information.This is not my line, but I research any and all Pentecosts.If you are from this line, I can give you several contacts if you will contact me directly by e-mail.They may even be more help.Good Luck, Martha