^ Ward's quarterly (1965) p.109 quote: ...in such delightfully-named towns in Pennsylvania Dutchland as his native Mount Joy, and neighboring Lititz, Blue Ball, Bareville, Intercourse, Bird in Hand, and Paradise.

^ Anderson (1979) p.214 quote: ...but anyone who names their towns Mount Joy, Intercourse, and Blue Ball can't be all bad. Obviously they have more on their minds than just religion.

^ Museums Association (2006) p.61 quote: Which brings us to Intercourse. You can imagine my delight when I found out that the Amish call the town of Intercourse, Pennsylvania, their home. There seems to be a lot of explanations from locals trying to pass off the name as a bastardisation of 'Enter Course' and so on, but seeing as there are other local towns called Blue Ball, Bird In Hand, and Mount Joy, I suspect that the person responsible had a very juvenile sense of humour. The town sits in upstate Pennsylvania and is a tourist trap for anyone even remotely curious about the Amish way of life.

^ Rand McNally and Company (1978) p.52