World War II brought many changes to Richmond, CA. Agriculture and whaling were replaced with ship building. Some remnants of that time remain, such as a couple of Navy tugs, the Red Oak Victory Ship, and one last example of a Whirley Crane.
The Whirley Crane takes its name from its ability to 'whirl' the turret 360 degrees. It was used sometimes more than one at a time to lift ship parts so that welders could get access more readily. Nearly 500 ships were built in the Richmond shipyards for the war.