I found a lot of Maurers in the Alsatian village of Diedendof in northwestern Alsace: Christian Maurer, Johannes Maurer, Samuel Maurer and others. Time period is late 1600s to sometime in `1700s. Source is the CD about Krummes Elsass, Hilly Alsace, which uses as its source the compiled records of Dr. Gerhard Hein. Many of the residents of Diedendorf came from Switzerland, says the CD. I expect to find many more Maurers in villages recorded in the CD.