| NAME AUTHORITIES: LOC: Williamson, John, 1751 or 57-1818 DNB: Williamson, John (1751–1818), portrait painter LBT ID: JoWilli1818 VIAF ID: 95863865 LOC ID: nr2003034741  | B/BAP:   1751 DIED: 1818-05-27  | 
| SOURCES: DNB; Virtual International Authority File; LOC Name Authority File | |
Born in Yorkshire, he was a Liverpool portrait painter patronized by William
                        Roscoe.  | |