Marissa is the daughter of Danny and Kim Beene, Vermillion. Ross is the son of Walter and the late Norma Jean Mockler of Burbank.
The future bride attends The University of South Dakota and is pursuing a degree in elementary and special education.
The groom-to-be is employed at SouthEast Farmers Coop as a custom applicator, and also raises cattle and farms near Burbank.
The couple is planning an April 5, 2008 wedding.