The 1937 number is already inflation-adjusted.

I'd be curious to know how much the real wages have changed since then though. It seems that in the US as whole, it hasn't changed much in the last 50 years or so. [1] However, the data doesn't go back to 1937, and it's for the entire US (not California in particular).

[1]: https://www.weforum.org/agenda/2019/04/50-years-of-us-wages-...