Bob Doerr has pointed out a great illustrated article on old St. Louis at the Cornell Making of America website:
William Henry Bishop, “St. Louis,” Harper’s New Monthly Magazine 68:406 (March 1884): 497-517.
The article includes numerous b&w illustrations:
The Levee; Eads Bridge; Merchants’ Building (exterior & interior); Fairgrounds Park; Four Courts; Statues of Humboldt & Benton; Washington Avenue at Grand; Henry Shaw; St. Louis High School; Old Spanish Tower; Wayman Crow; St. Louis Art Museum; a bit of Old St. Louis.
Then select: Harper’s New Monthly Magazine-->1884-->March.