Federal Income Tax Brackets for Tax Year 1956 (Filed April 1957) https://www.tax-brackets.org/federaltaxtable/1956
@TheOldGuy for some reason that link u sent isn't working for me. Will have to try on my PC. But see this https://taxfoundation.org/taxes-on-the-rich-1950s-not-high/
@TheOldGuy I quickly looked into it and they are a "think tank" based in washington D.C., founded by businessman in order to "monitor the tax spending policies of government agencies". To me, government overwatch lends some credence, but "founded by businessman" also makes me skeptical. Will continue looking into them, but as of now, I am skeptical of their bias.