In answer to the first question: missionary work and churching planting, and lots of it.
And on a more historical note: Not in Texas, actually. There were a couple of initial events, including in North Carolina and in Kansas, but the event that really introduced Pentecostalism to the US and the world was the Azusa Street Revival in Los Angeles in April 1906 (perhaps the Great San Francisco Earthquake that occured in the same month and year, just up the coast was just a coincidence
). It also might interest you to know that, contrary to popular stereotypes, the missionary work mentioned above is not all one-way (US to the world). Brazilian Pentecostals (and there are a whole lot of them, so it doesn't surprise me that there are a lot of them in Kenya as well) send missionaries to the US, in just one example that I learned about when taking a world religions class at university.
As far as the topic at hand goes, I had probably best not comment for fear of violating the "no religious discussion" rule and would just get myself in trouble. Suffice it to say that I hope the fossils remain prominently displayed and in a way that illustrates the principles of evolution.