I spent a good amount of time in the Midwest in an environment where about half the people were black, half white, and there was a good amount of card playing going on. The black people pretty universally wanted to either play Spades or Bid Whist. The white people played Euchre. There was little or no crossover among the groups. I only recall one white person who knew how to play Bid Whist, and one black person who knew how to play Euchre.
