found: Friml, R. You're in love, c1917:t.p. (Otto Harbach)
found: Friml, R. The firefly, c1940:t.p. (Otto Hauerbach)
found: His The O'Brien girl, 1921?:cover (O.A. Harbach)
found: Hoschna, K. Every little movement, c1910:cover (O.A. Hauerbach)
found: New Grove dict. of Amer. mus.(Harbach (Hauerbach), Otto (Abels); b. 8-18-73, Salt Lake City, UT, d. 1-24-63, New York; librettist and lyricist)
found: Tommy Atkins (score sheet cover), 1915:(Ogden Hartley)
found: Bright eyes, 1909DLC copy theater program, New National Theatre, Washington, D.C. performance (lyrics by Otto A. Hauerbach)
found: Youmans, V. No no Nanette, 2012:container (Otto Herbach)
