Hi Caro,
Dof will hopefully be notified that you have posted here. Do you believe you are related (e.g., did your Maurer's also move to Scotland?). If not, it might be best to split your message off to make a separate post.
I cannot find a place called Charvenay in Alsace - there are places with similar names, e.g. Chavenay in Yvelines.
The good news is that if we can locate the correct place, a lot of records are now online, including for both Haut-Rhin and Bas-Rhin (the two departments that make up Alsace).
jorose