My 2nd great grandmother, Margaret Riffle Miller, spelled her maiden name as "Riffle." Her father was Jacob Riffle (married to Catharine Conley) and his tombstone shows his name with the "le"spelling. Jacob's father was Bernard Riffel and his father Mathias Riffel. The Goshenhoppen register shows Mathias' name spelled as "Riffel." Does anyone know when the spelling changed and why?