The photos below were copied from C. Brewer annual reports between 1946 and 1951. 

Photos courtesy of John Cross, Custodian of the Records, the Olson Trust Sugar Plantation Archives.

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Cultivating

1951, Hakalau - Deep ploughing

1946 - Hilo, Sled Planting in Mauka Fields

1947 - Hakalau, Hardie Mule Drawn Sprayer

1947 - Hakalau, Three Line Farmall Sprayer

1947 - Hakalau, Broadcast Spraying Ratoon Fields

1948 - Hakalau, Subsoil Fertilizer Rig with Hand Feed

1950 - Hakalau, Weed Spraying with Pressure Knapsacks

1950 - Hakalau, Two Way Tractor Cultivator

1951 - Hakalau, Deep Plowing

1951 - Hakalau, Application of Fertilizer by Helicopter (an experiment)