The Jefferson Hotel is located on North Tucker Boulevard in St. Louis, Missouri. The hotel became the home of St. Louis Cardinal Rogers Hornsby beginning in early 1923. In mid-1922 the infielder began an affair with Jeannette Pennington, a woman he met at a dog racing track he frequented in Collinsville, Illinois. By the end of the year his marriage was over and his wife, Sarah, moved to Los Angeles to be with her family. Hornsby moved here, where he continued his romantic tryst with Pennington. They were married on February 28, 1924 and after spending a brief period of time here as man and wife they left the hotel for a 12 room estate on the outskirts of St. Louis. The hotel was originally built in 1904, with additions added on in 1928. After a succession of name changes it closed it's doors in 1975 then reopened in 1977 as senior living apartments. By 2006 the seniors were gone and the structure sat vacant. The building was placed on the National Register of Historic Places in 2003.