Trowbridge's Broadway credits include Dinner at Eight (1932), Ladies of Creation (1931), Congai (1928), The Behavior of Mrs. Crane (1927), We Never Learn (1927), Craig's Wife (1925), It All Depends (1925), The Backslapper (1924), The Locked Door (1924), Sweet Seventeen (1923), The Lullaby (1923), The Last Warning (1922), The Night Call (1921), Just Because (1921), The Broken Wing (1920), Why Worry? (1918), This Way Out (1917), Come Out of the Kitchen (1916) and Daddy Long Legs (1914).