The Metz (Schneiders site redevelopment)

[nms]

Thanks! I should have looked a little deeper.

From Wikipedia: 

In ancient times, the town was known as "city of Mediomatrici", being inhabited by the tribe of the same name. After its integration into the Roman Empire, the city was called Divodurum Mediomatricum, meaning Holy Village or Holy Fortress of the Mediomatrici, then it was known as Mediomatrix. During the 5th century AD, the name evolved to "Mettis", which gave rise to Metz.

Metz is in the Lorraine region which has been traded between French- and German-speaking people for hundreds of years. Its not surprising that John Metz Schneider's mother, Anna Metz, spoke German.