I have done a relatively small amount of work on my husband's ancestry, which includes Stewart, Bittinger, Switzer, and Warnick, among others. Most of these people were in Garrett County, Maryland and surrounding counties in West Virginia, formerly Virginia. I'm just not sure how these families fit in with what you have. I am certainly interested and will share what little I have. Perhaps you can take some of these back several generations from where I have been able to go. Cherry Stewart (in Albany, Georgia)