Neiman Marcus | Marcus Garvey | Marcus Aurelius | Marcus Welby, M.D. | Greil Marcus | Marcus Brigstocke | Marcus Stephen | Marcus Vipsanius Agrippa | Marcus Rojas | Marcus Ullmann | Marcus Samuel, 1st Viscount Bearsted | Marcus Roberts | Marcus Liberty | Marcus Hahnemann | Marcus Didius Falco | Marcus Tregoning | Marcus Neff | Marcus J. Ranum | Marcus Daly | Marcus Buckingham | Marcus Borg | Marcus Aurelius Probus | Marcus Adoro | These Being the Words of Marcus Tullius Cicero | Steven Marcus | Shimmy Marcus | Marcus Westbury | Marcus Trescothick | Marcus Samuel | Marcus O'Sullivan |
Clemmer managed the Fifth Avenue theater (1925-1926) (designed by Robert C. Reamer), the Winter Garden, the Music Box (1928-1930) (designed by Henry W. Bittman), various Blue Mouse theaters, the Music Hall, one of Portland, Oregon's Paramount theaters (1928) (designed by Rapp & Rapp with Priteca & Peters), and the Orpheum (1926-1927) (designed by B. Marcus Priteka).