- Mackay, B. R. (Bertram Reid), 1885-1
- Magnusson, L. R.1
- Mahone, Geo. W.1
- Malott, Clyde A.1
- Mangum, A. W., cartographer, surveyor.1
- Martin, Chas.1
- Martin, Ebenezer (Engraver)1
- Martin, Luther R..1
- Maxwell, D. C.1
- McAnlis, C. R., cartographer.1
- Mendenhall, Edward, cartographer.1
- Mess, George Joseph, 1898-19621
- Meuschke, J. L.1
- Middleton, Philip (Soil surveyor),surveyor.1
- Miller, J. T. (John T.),1906-cartographer,surveyor.1
- Mills, J. Blair (Soil surveyor)1
- Minto, George1
- Mitchell & Hinman.1
- Moore, Will H., 1850-cartographer.1
- Moran, W. H. (William H.)1