
| 
 Jacob bin Haji Omar | |
| 
 (Source: Flora Malesiana ser. 1, 1: Cyclopaedia of collectors) | |
| 
 Joined the Forest Department Malay Peninsula in 1916; now retired. He collected mainly in N. Perak, but also in Kedah. | |
| 
 Cf. sub Conservator of Forests series, Kepong [KEP]. |