Croall, also from Dumfries, Scotland. My grandfather was Albert Croall. He was an electrical engineer. Look up Croall's taxi service, or carriage service. Croall, part of royal transportation service, possibly Hollyrood palace in Scotland.

Heritage may include Nordic roots, French....
De La Croix (of the cross)....
My father, Kenneth Albert Croall said Croall's migrated from/to Normandy.