In order to trace your family's natural origin, you must learn
In order to trace your family's natural origin, you must learn all that you can to be sucessful. Concentrate on an area, and do a wide, varied sweep of all records using the many various surnames associated with Grierson:
Grierson, Grieson, Greirson, Greierson, Greison, Greerson, Grearson, McGrierson.
Grier, Griere, Griery, Greer, Greere, Greery, Grear, Greare, Greear, Greir, Greire.
McGreer, McGreery, McGrier, McGriery.
O'Greer, O'Grier, O'Greery, O'Griery.