Ohhh, good work Polarbear

...and note that we are now back to Eusebe & Mars...the original request...sigh

eventually, MARS CONTOIS...might be another version of the name
The husband's name may now also be under Mars, Meurs, Mers, Murs etc...but sans the dit ( there is also St. Mars/ du mars de Mars then remove the "s" or add an "r" etc....and who knows if hers might have an additional title added...but you have a date, which is cool...
Have contacted thread owner by p.m. This is an old topic, so email addresses may have been changed since, so we'll wait for a reply before you dig any more....