I remember Harrison Wholesale well. My dad worked in the Merchandise Mart for the telephone company, and often would take me to work with him on Saturdays. We often stopped off at Harrison Wholesale to look for bargains. The address of 500 N. Orleans would be correct, as I remember the building to have a long frontage along Grand Avenue west from Orleans, on the south side of the street. I remember going up in the old warehouse building, looking at merchandise displayed on old worn wooden floors. I think I might even still have a couple of catalogues around the house from the firm. They closed, I guess, in the 1960's, and Clark and Barlow Hardware moved into the facility. I have no idea of what is there now.