Cassie is the daughter of Jay and Linda Thornburg of Forney. Michael is the son of David and Cindy Pennington of Three Rivers.
Attending the bride were friends Chelsea Haar, Tabitha Grady, Megan Daughterty, Shannon Richey and Elizabeth Brady. Flower girl was Kendall Grady.
The groomsmen were Philip and Preston Pennington, brothers of the groom and friends Wesley Brosig, Ryan Williford and Colby Braune. Ring bearer was Holten Wieding. Serving as ushers were Kirk Wolf, Ryan McDonnell and Chris Gomez.
The beautiful bride was escorted down the aisle on the arm of her father. The bride carried a bouquet of pink roses accented with pink and orange gerber daisies. Her strapless gown was designed by Maggie Sottero.
Cassie is the granddaughter of Tom and Mildred Thornburg of Mesquite, and the late Kenneth and Alice Smyers.
Michael is the grandson of Bill and Ruby Wieding of Three Rivers, Jackie Pennington of Houston, and the late Benny Pennington.
A reception was held at Delaney Vineyards. The couple honeymooned in St. Lucia and reside in Seguin.