The 1930’s saw small prairies such as the 45xx take up the traction mantle, pulling 2 car “B” sets.

Goods traffic remained an important source of revenue. Besides “coal down and agriculture up”, broccoli proved an important consignment, 30,000 being sifted in 1936 alone!.

Quarrying continued, with granite proving the usual cargo. Freight vehicles reflected the goods transported, with the Mex wagons for Broccoli and the privately owned fleet of Helston Gas Co. coal wagons with a black and white livery. It was during this period that road transport began to challenge the dominance of the railways, a situation that was to become critical for the Helston Branch in years to come.