No, I've had no success in making contact with Jackie E Groce.
I have an interest in the Theobald Groce line because I'm in that family. Jackie made a webpage that lists a very long list of the Theobald Groce family and all of its descendants .... except *me*, that is. Lists my siblings, cousins....forgot me, though, thankyouverymuch! ;)
I only learned of the page - and of details regarding that side of my family - about a year ago. Received an email from someone I'd never met nor heard of before who told me she helped Jackie make the list, but had no other contact with Jackie since - doesn't know how to contact her, either.
It lists one Theobald born 1716, died June 14, 1759, buried in York City PA. Another Theobald was born 1744, died Oct 21, 1839, buried in Clinton County, KY. (There may be others with the same name, too - it is a rather long listing.)
Good luck with your search - let me know how it turns out.