I would not assume this. We are talking about a couple generations ago, when founding a church basically meant gathering enough funds for a very basic building (no HVAC, no plumbing, maybe no electricity) and not much else. Churches were often tiny ,and the minister a guy with a job that paid the bills. The churches-per-capita in Alabama, especially 50 years ago, is shockingly high. These tiny little churches would only have one service. You could found 40 churches for the deaf and not a one of them serve more than 50 people.