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- Underhill, Irving, d. 1960, copyright claimant, photographer. (1)
- Underhill, Irving, d. 1960, copyright claimant. (25)
- Underhill, Irving, d. 1960, photographer. (1)
- Underwood & Underwood, copyright claimant. (1)
- Unglaub, Joseph Bernard, copyright claimant. (1)
- Utsushigawa, T., photographer, copyright claimant. (1)