The musical "Here's Love" was based on this 1947 film in which the real Kris Kringle is hired to work at Macy's
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Mr. Sawyer tells his secretary that Mr. Kringle should be dismissed from work as... [DOC] [TLE] Miracle on 34th Street (1947) - Articles - TCM.com [PAR] When the Santa hired to ride in the annual Macy's Thanksgiving Day Parade 
shows up ...