This entry for the Siebenbuerger Gesangverein lists its founding date, meeting location, officers and their home addresses, and its regular meeting time (first Thursday of the month).
Specialized Directory of German-centric Organizations in St. Louis
Deutscher Vereins-Almanach, 1910
This directory opens with a month-by-month list of groups and their regular meeting days.
In another section that lists each organization by type, the directory provides:
The directory also provides brief histories of some of the larger clubs, as well as background information about St. Louis.
Using Standard City Directories to Research German Social Groups
If you are researching other years besides 1910, a standard city directory can be a good choice. Many of them have been digitized; the St. Louis Mercantile Library has compiled a list of freely available digitized directories. Many subscription-based genealogical websites such as Ancestry.com, Fold3, and others have digitized city directories. The MHS Library & Research Center has bound volumes of the directories available in the Reading Room.
In a city directory, look for the Societies section, usually at the end of the volume.
The bulk of the German groups appear in the listings of benevolent, protective, and fraternal organizations.
Some directories also have separate listings of singing societies and specifically German-focused groups such as Harugari and the Sons of Hermann.
Some German-centric groups are listed at the end of the Societies section under Miscellaneous.