I have regretted for years not taking pics of the farm laborers back then.
One example was harvesting Spinach. All hand cut and packed in peck baskets. Baskets loaded on flatbed trucks and hauled to town. There was a huge icehouse there with a mountain of crushed ice piled on a huge loading dock. Field trucks backed up to the South side of the dock. Over the road reefer van trailers backed up to the North side. Workers scurrying like ants on an ant hill. Grab a peck basket, carry it to the ice pile, open the lid. A scoop of ice added to the top, lid replaced. Carry to the van trailers and stacked inside. Van trailer gets full, shuts doors and takes off to it's destination somewhere in the U.S. Repeat. All day long. Fresh spinach.