Herbert and Jill Derickson of Wartrace, Tenn., proudly announce the birth of their son William Clayton Derickson, born Oct. 9, 2003. He weighed eight pounds 10 ounces. He joins a family of horse lovers including sisters, Erica and Maria, and brother Thomas. Grandparents are Dr. and Mrs. Brundige of Sugar Grove, Ill., and H.T. and Wilda Derickson of Stanton, Ky.