One source I've found, admittedly not referring to these specific individual locos, says that:
"Originally the locomotives did not have tenders but after a period in use they were provided to carry bagasse (crushed residues of the cane) as fuel for the boiler."
I haven't found any models of Sugar Cane Railway steamers yet, but while searching I did stumble across these, which might be of passing interest to Muddy.
UPDATE: check out this modelling link!
"Originally the locomotives did not have tenders but after a period in use they were provided to carry bagasse (crushed residues of the cane) as fuel for the boiler."
I haven't found any models of Sugar Cane Railway steamers yet, but while searching I did stumble across these, which might be of passing interest to Muddy.
UPDATE: check out this modelling link!