Rachel Tinney and Rod Lunn Tinney - Lunn Mr. and Mrs. Mike Tinney of Norman, Okla homa, announce the engagement of their daugh ter, Rachel Lee Tinney, to Rod Hall Lunn Jr., son of Liz and Rodney Lunn of Brentwood, Ten nessee. The future bride is a graduate of Norman North High School and Moore Norman Career Technology Center. She is a singer, songwriter and skin care specialist. She is the granddaughter of Roy and Pansy Tinney of Mangum, Oklahoma and Herman and the late Donna Kaspereit of Duncan, Oklahoma. The future groom received a Bachelor of Science degree in economics and a Bachelor of Arts degree in legal studies from the University of Illinois. He is a recording artist, songwriter and the owner of Avenue58 Diamond Company in Brentwood, Tennessee. A May wedding is planned and the couple will live in Brentwood, Tennessee.