422 entries have been contributed to by Dews, D Colin:
- Martin, Sir George William, KBE (1884-1976)
- Mather, John (1820-1908; e.m. 1844)
- Mawson, Henry Thomas (1823-1908)
- Meek family of York
- Messingham, Henry William (1860-1924)
- Middlesbrough
- Miller, William Edward (1766-1839; e.m. 1799)
- Milson, Parkinson (1825-1892; e.m. 1847)
- Mitchell, Joseph (c1807-1876)
- Mitchell, Thomas, DD (1844-1915; e.m. 1866)
- Myners, Paul (1948-2022)
- Neal, Arthur (1862-1933)
- Neal, Sir Francis Leonard, CBE (1913-2008)
- Needler, Frederick (1864-1932)
- Nicholson, Samuel (1811-1887; e.m. 1829)
- Oastler, Richard (1789-1861)
- Oastler, Robert (1748-1820)
- Odell, Joseph (1846-1923; e.m. 1866)
- Ogden, Eric (1923-1997)
- Ogden, James (1827-1915; e.m. 1851)