Names
- Mather, William Gwinn, 1857-1951.1
- May, Thomas, 1860-1927.1
- McKinley, William, 1843-1901.1
- McMillan, James, 1838-1902.1
- Mencken, H. L. (Henry Louis), 1880-1956.1
- Mershon, William Briggs.1
- Montgomery, Robert M., 1849-1920.1
- Morley, George Bidwell, 1857-1935.1
- Murfin, James Orin, 1875-1940.1
- Murphy, Frank, 1890-1949.1
- Musselman, Amos S., 1851-1
- Newberry, Truman Handy, 1864-1945.1
- Osborn family.1
- Osborn, Chase S. (Chase Salmon), 1860-1
- Osborn, Stellanova, 1894-1988.1
- Palmer, Calvin A.1
- Pegler, Westbrook, 1894-1969.1
- Petoskey Portland Cement Company.1
- Phelps, William Lyon, 1865-1943.1
- Pinchot, Gifford, 1865-1946.1