The fact that it was well-established long before OP's 1930s movies is attested by this sentence in the Transactions of the Annual Meeting from the South Carolina Bar Association, 1886 And to-day, “free white and twenty-one,” that slang phrase, is no longer broad enough to include the voters in this country.
AOL: 35 Printable Cards for Grandparents Day That Are Sure To Make Grandma and Grandpa Smile
35 Printable Cards for Grandparents Day That Are Sure To Make Grandma and Grandpa Smile