 Johnny Mercer had been nominated six times for an Academy Award before he won in 1946 with On the Atchison, Topeka, and Santa Fe from the Harvey Girls. That was Judy Garland, of course, on the vocals. The music writer was Harry Warren. And that year they beat out All Through the Day, I Can't Begin to Tell You, Old Buttermilk Sky, and You Keep Coming Back Like a Song. Five years later, Mercer teamed up with Hoagie Carmichael for his second Oscar. From the motion picture Here Comes the Groom, Bing Crosby and Jane Wyman performed...