I would be stunned if Joseph Armfield's family originated in Germany as Kernersville is quite near Greensboro, North Carolina and that area was settled in the 1750's by John Armfield and a large group from Pennsylvania. Three of John's son's were named Isaac, William and Joseph and those same names have been used virtually every generation and by every line from those sons. John was allegedly born in northern England in 1695 and came with a wife to the U.S. in 1721.
Emba