Across the river from St. Louis is Belleville, IL and there were many Shuberts/Schuberts who moved there from St. Louis. Most of these Shuberts were Catholic and there records are on-line with Ancestry. Belleville (St. Clair County) has an excellent genealogy society that is housed in the county library. They house the old newspapers from East St. Louis, IL, Belleville, and some from Madison County. Belleville was almost entirely German and is my home town. Good luck on your research.