| Umpiring information | |
|---|---|
| Tests umpired | 1 (1935) |
Source: Cricinfo, 1 July 2013 | |
J. G. Blackman was a West Indian cricket umpire. He stood in one Test match, West Indies vs. England, in 1935, when his umpiring partner was Arthur Richardson, the former Australian Test player. [1] He umpired five first-class matches, all at the Bourda ground in Georgetown, British Guiana, between 1934 and 1938. [2]