Thank you for the answer. Meanwhile I found a little more about my familiy. My Grandfather was Robert Heinrich Wilhelm Viol, born 09. okt. 1873 in Wilkau, County Namslau. Namslau is the name of a city and the county. His father was Wilhelm Viol, my Grandgrandfather. Maybe there is the a relation between my and your Viol's.
By the way, do you live not far vom the I10? If so, I drove many times the I10 close to your home during my stay in El Paso. I hope, to hear from you!