An Anaheim pepper is a mild variety of chili pepper. The name "Anaheim" derives from Emilio Ortega, a farmer who brought the seeds to the Anaheim, California, area in the early 1900s. They are also called California chili or Magdalena, and dried as chile seco del norte. Since Anaheim peppers originated from New Mexico, they are also sometimes known as New Mexico peppers.
http://en.wikipedia.org/wiki/Anaheim_pepper
True, Anaheim chilies—those grown in Orange county but now all across California—originated in New Mexico but probably not from Hatch. So what is your point?