- M. Mark (Fall River, Massachusetts) (1)
- M. Mark (Jacksonville, Florida) (1)
- M. Munk (Wien) (1)
- M. Rusling Wood, Litho. (1)
- M. Sarrablo y Clavero (Paris) (1)
- M. Witmark & Sons (New York), 1917 (1)
- M. Witmark & Sons (New York), 1937 (1)
- M.A. Bancroft (Hinton, Iowa) (1)
- M.A. Pendleton (Lake Geneva, Wisconsin) (1)
- M.E. Hamm (Toledo, Ohio) (2)
- M.I. Weller (Washington?), 1901 (1)
- M.W. Taylor and W.C. Echols (Cincinnati) (1)
- MB (Frederick, Maryland) (1)
- MWM (Aurora, Missouri) (2)
- MWM. Company (Aurora, Missouri) (1)
- MacGibbon and Kee (London), 1969 (1)
- MacMillan (New York), 1977 (1)
- Macaulay Co. (New York) (1)
- Maclear & Co., Liths (Toronto) (1)
- Macmillan (New York), 1926 (1)
