I was trying to do research on Levin McFarlin per posting. I've come across a good deal on John McFarlin of Dorchester Co, (including a will). His sons - William and his wife, Elizabeth; and son John.
Anyone doing research on the Eastern Shore, I recommend the NABB Center, part of Salisbury University, in Salisbury, MD. I will continue to look for information on Levin as time allows. If anyone is interested in the information on John, please contact me.