Gladys Knight | Gladys Knight & the Pips | Pete and Gladys | Gladys Brockwell | Chuck Leavell | Gladys Cooper | Gladys Aylward | Gladys Moncrieff | Gladys Noel Bates | Smashed Gladys | Gladys Walton | Gladys Vanderbilt Széchenyi | Gladys Swetland | Gladys Spencer-Churchill, Duchess of Marlborough | Gladys Shelley | Gladys Powers | Gladys McConnell | Gladys Lunn | Gladys Lehman | Gladys' Leap | Gladys Kravitz | Gladys Kessler | Gladys Horton | Gladys Henson | Gladys Heldman | Gladys Esther Tormes González | Gladys Berejiklian |
Working with Hope Sherman, Gladys Leavell, and Lauretta Bender, among others, DeWitt examined several dyes as potential precursors to an anti-tuberculosis drug, including methylene blue and trypan red.