Direct line to St. Louis in 1821

I used to get calls for the city directory at the library where I worked. I always figured the callers were bill collectors wanting to get a current address. We had one from the 1930s but that was it. Our town was too small to be appealing to those directory publishers.

Here is the entry for Missouri's first governor in the 1821 St. Louis City Directory.
M'Nair, Alexander governor of the state of Missouri north Third near the first large Indian mound 
 What a gem!