Holl Family That Came to America from Germany

Although I married into the "Holl" family in 1990, I am interested inlearning genealogy from my husband family line. His grandfather,(Opa)Eric William Holl came to America with his wife, Martha and brother Alfred. William & Martha had two sons, Rudolph (Rudy) and William. Rudy & Claudette Felici Holl had 6 children: John, Richard (my husband), Laurene, Keith, Wayne and Thomas. I am searching for any relatives who now live in America from the Holl line.

Eric William Holl was born in Germany on March 10, 1901 & Martha was born on August 15, 1906. I have postcards from Germany from a Elizabeth & Fritz Holl (Written in German). I also know that the Holl's came to America in the 1930's and that they were shop owners in Germany (Deli).