Kathleen (Katie) Jayne Redmond of Grass Valley and Sean Thomas Westrick of Vacaville have announced their plans to marry. Kathleen Jayne Redmond, daughter of Patrick and Jennifer Redmond of Grass Valley, is a 2005 graduate of from Bear River High School and a 2009 graduate of California State University, Sacramento. She is a 2nd Lieutenant, Air Battle Manager for the United State Air Force. Katie is stationed at Tinker AFB, Oklahoma. Sean Thomas Westrick, son of Stephen and Jennifer Westrick of Vacaville, is a 2004 graduate of Vanden High School and a 2009 graduate of California State University, Sacramento. He is a 2nd Lieutenant, Pilot, for the United States Air Force. Sean is stationed in Columbus, Mississippi. The couple is scheduled to marry on Sept. 17, 2011 at South Lake Tahoe.