I'd suggest calling your local high school to see if they have an Ag teacher. If so, he/she will know all about 4H. If not, call city hall or the Chamber of Commerce and ask for the name and number of the local County Extension Agent.
Kathy in Texas
PS: 4H is a big deal around here. So big that the schools shut down when the County Fair takes place, because so many kids are showing animals (horses, pigs, cows, goats, turkeys, rabbits, and chickens).