Rhonda Dione Johnson and Zachary O’Neal Ervin will be united in marriage at 6 p.m. Saturday at the A.W. Watts Senior Center in Hopkinsville.

Miss Johnson is the daughter of Mr. and Mrs. Ronald Johnson Sr. of Hopkinsville. She is the granddaughter of the Rev. and Mrs. Charles Brown of Hopkinsville, and the late Mr. and Mrs. James Johnson. She is a 2001 graduate of Hopkinsville High School in Hopkinsville and earned a bachelor’s degree in systems management from Western Kentucky University in Bowling Green in 2008. She is the assistant manager of Guardian Court Apartments in Louisville.

Mr. Ervin is the son of Tyrone and Helene Ervin of Paducah. He is the grandson of Mrs. Laura Ellis of Woodland Mills, Tenn., and the late Edmon Ervin, and the late Mr. and Mrs. Ruben Moss Sr. He is a 2002 graduate of Paducah Tilghman High School and a 2008 graduate of Western Kentucky University in Bowling Green with a bachelor’s degree in interdisciplinary studies. He is employed as a project analyst for Humana Pharmacy Solutions in Louisville.