There's an argument that the effective rates then were only around 50%. See https://www.aei.org/publication/why-we-cant-go-back-to-sky-high-1950s-tax-rates/ htt

There's an argument that the effective rates then were only around 50%. See https://www.aei.org/publication/why-we-cant-go-back-to-sky-high-1950s-tax-rates/ https://www.aei.org/publication/why-we-cant-go-back-to-sky-h..., http://www.bloombergview.com/articles/2013-01-02/1950s-tax-fantasy-is-a-republican-nightmare http://www.bloombergview.com/articles/2013-01-02/1950s-tax-f..., and http://www.wsj.com/articles/SB10001424127887324705104578151601554982808 http://www.wsj.com/articles/SB100014241278873247051045781516....