Jim and Nancy Duffy, Hays, and Patty Duffy, Manhattan, announce the engagement and approaching marriage of their daughter, Jennifer Kathleen Duffy, to Gregory James Piazza, son of Wayne and Dianne Piazza, Frisco, Texas.

The bride-elect is a 1997 graduate of Manhattan High School, and a 2001 graduate of Kansas State University with a degree in dietetics. She is employed at Artex Medical Home Infusion, Richardson, Texas, as director of the nutrition division.

The prospective bridegroom is a 1997 graduate of Vandebilt Catholic High School, Houma, La., and a 2001 graduate of Nicholls State University in Thibodaux, La., with a degree in accounting. He is employed at Ryan LLC as a business development manager.

An April 16, 2011, wedding is planned at Playa del Carmen, Mexico.