Marie Karthauser is cited in the History of Rogers Park, Document #34.
In 1845, my father John Zender bought the Ridge Inn from Peter Schmidt. It was a saloon and was built of logs. There were only five houses near the saloon and most of the trade was made up of people traveling to and from Chicago. Indians used to come into the old log house and ask for "firewater" and my father gave it to them out of the jug of whisky.
Ebert's Grove, which is next door to the Ridge Inn, opened a short time after my father started and was run by my brother. They didn't have names like "Grove" and "Inn" then, but were just called "saloons". This was later operated by Joseph Ebert, born 1861.