237's Worshipful Masters Roll
The following Sir Knight Companions have acted as Worshipful Masters of the Foyle Defenders Royal Black Preceptory No. 237 since its formation in 1893
| John Herriott | 1893 - 1897 | W. Barnett | 1950 - 1951 | ||
| Wm. McNeil | 1897 - 1898 | Victor Starrett | 1951 - 1953 | ||
| Edward Irwin | 1898 - 1899 | W. J. Fulton | 1953 - 1954 | ||
| Wm. McIntyre | 1899 - 1907 | Robert J Ferris | 1954 - 1961 | ||
| Wm. Harrison | 1907 - 1908 | William K Young | 1961 - 1963 | ||
| Alex. Platt | 1908 - 1909 | W H Beckett | 1963 - 1964 | ||
| Joseph Blair | 1909 - 1910 | J Stevenson | 1964 - 1967 | ||
| Wm. Lindsay | 1910 - 1913 | Alex Hay | 1967 - 1969 | ||
| Robert Simpson | 1913 - 1915 | A Kilpatrick | 1969 - 1973 | ||
| James E. Kilgore | 1915 - 1916 | W B Cowan | 1973 - 1975 | ||
| Robert McIntyre | 1916 - 1924 | William Gardener | 1975 - 1977 | ||
| James E. Kilgore | 1924 - 1927 | George Duddy | 1977 - 1983 | ||
| J. J. Scott | 1927 - 1929 | Ronald Thompson | 1983 - 1986 | ||
| John Young | 1929 - 1934 | John Walker | 1986 - 1987 | ||
| H. Young | 1934 - 1937 | Kenneth Quigley | 1987 - 1989 | ||
| A. J. Hatrick | 1937 - 1940 | William Moore | 1989 - 1990 | ||
| John Tadley | 1940 - 1941 | John Myles | 1990 - 1992 | ||
| John Leslie | 1941 - 1942 | Leslie Pickering | 1992 - 1994 | ||
| James Robinson | 1942 - 1944 | David C S Allen | 1994 - 1996 | ||
| Wm. Waterstone | 1944 - 1946 | Alistair Thompson | 1996 - 1998 | ||
| R. J. McGowan | 1946 - 1948 | James Thompson | 1998 - 2000 | ||
| J. Gordon | 1948 - 1949 | David Hay | 2000 - 2002 | ||
| R. McGowan | 1949 - 1950 | Gavin Haslett | 2002 - 2004 |