I have been researching my branch of the Genz family and have about 210 entries. If you check the index under John L. Genz you will find my Tree or go to http://familytreemaker.genealogy.com/users/g/e/n/John-L-Genz/http://familytreemaker.genealogy.com/users/g/e/n/John-L-Genz/. My family came over in 1877 into NY and later moved to Elizabeth, NJ This move involved my GG-Father, Eduard H. Genz, and his family. He had been the Interim-Bergermister in Wallerfangen, Gr. which is a small town next to Saar Louie in the Aslance-Lourine.
If anyone has any information on this family please advise. I know a branch moved to Washington DC and others to Georgia where Henry Genz was a professor at Georgia Tech. Others from that branch have removed to Flordia.