1. George Colman the Elder (1732-1794) - playwright, collaborator of Garrick
2. George Colman the Younger (1762-1836) - son of the above, also a playwright and poet
Both of these writers were often billed only as 'George Colman' so care must be taken in distinguishing and assigning their works.
3. George Colman - fl. 1980. '22 Quaint Cases in the South African Law'