Mr. and Mrs. Douglas Nicholson of Gainesville announce the engagement of their daughter Miss Erin Marie Nicholson to Mr. William Medlock Webb, son of Mr. and Mrs. Jonathan Webb of Plains. The bride-elect is the granddaughter of Mr. and Mrs. Melvin Shearin of Toccoa, Mr. Thomas O. Nicholson of Gainesville, and the late Mrs. Ann R. Nicholson. She is a 2007 graduate of Chestatee High School in Gainesville.