Charles D. Elfelt’s store and Whitney’s Gallery, Third and Cedar, St. Paul. (1852) MHS
Whitney’s gallery, on yet another corner of Third and Cedar in Downtown St. Paul was across the street diagonally from the site of Ingersoll’s studio 1885-1890, and would have literally been next door (if it still existed—it didn’t) to the next incarnation of Ingersoll’s studio from 1891-1894 at 27 E. Third Street.
This corner, since 1966 at least, has housed the Crowne Plaza Hotel. Billed as “the place to meet,” I suspect that this intersection might have claimed that distinction since at least 1852.