I am confused about the location of your g.g.g.g grandfathers place of birth (Switzerland, France, or Germany. Alsace is a region of France, Germany and Switzerland. -If you have any additional information such as your ggg grandfather and place of birth etc may be helpful. I find it is easier to work backward from a more current decendant.
Definition of Canton
part of country: a division of a country, especially one of the states into which Switzerland is divided
part of French subdivision
Phalsbourg (German: Pfalzburg) is a commune in the Moselle department in Lorraine in north-eastern France, with a population of about 5000.