My great-grandfather, Daniel N. Poole, had 5 children, one of whom was Martin Claton Poole; born 8-31-1856, died 5-16-1888. Most likely he was born in Washington Co., but they were farmers and may have lived close to the Fredrick County line. Not the same name but strange things can surface in these searches.
I would be pleased to see anything you have about other Pooles in the area. The record of a whole branch of my family was lost in the early 1800s. The geneaology I have available, developed by my father, Hubert A. Poole, is also on file in the LIbrary in Hagerstown, Md.
H.K. Poole, 4620 Avenida Pocacca, Tucson, AZ 85749 phone (520)749-9025