Elijah P Hearn and siblings in Wicomoco

Who is this? I can't find any family that matches.

Census 1880 Maryland Wicomoco Troppe District

Family 257

Elijah P Hearn, @, M, 27, Farmer, MD, MD, MD

John H Hearn, W, M, 33 Brother, Farmer, MD, MD, MD

Amielia A Hearn, W, F, 31, Sister, Keeping House, MD, MD, MD

Mary J Hearn, W, F, 29, Sister, Keeping House, MD, MD, MD