Creator
- McNeill News Photo Service (Washington, D.C.)1
- McNeill, Robert H.1
- Mears, Bill.1
- Mellen Photo Co. (Chicago, Ill.)1
- Mercantile Photo Service.1
- Meske, Gilman & Rawson (Sharon Springs, N.Y.)1
- Metropolitan Photo Service (New York, N.Y.)1
- Mila, J. E.1
- Miles, Earnest E.1
- Miller.1
- Milwaukee Public Museum.1
- Mitchell, Edward H.1
- Mitchell.1
- Mo_ller, A. W.1
- Moonlight Studio (Wichita, Kan.)1
- Moore Photo Co. (Kansas City, Mo.)1
- Moore Studio (Huntsville, Tex.)1
- Moore.1
- Morehouse-Martens Co.1
- Morrill Press (Fulton, N.Y.)1