Re Cuquemelle
Thanks for all the information on the Cuquemelle and Michaux families very interesting.
Louis Alfred Cuquemelle was one of my great, great grandfathers. I have a document which I take to be the original, or 'an original copy' of, the marriage certificate of L A Cuquemelle and Reine Warnier on 16th October 1858. This took place in the (old) 12th arrondissement - unfortunately I previously misread the smudged number on the official stamp as '19th' arrondissement, but at the top of the page it clearly says 'le marie du douzieme arrondissement'. (Also, I see that there were only 12 arrondissements until 1860).
He appears to have served in the French army from 1849 to 1856, spending time in Africa and the Crimean War.
At some point he moved to London - I wish I knew why - followed in February 1862 by his wife and 13 month old daughter (my great grandmother) Victorine. (I have the Passeport a l'Interieur.)
Hope this is of interest.