Jennifer Richardson and Mark Mastro of Manteca are announcing their plans to wed on Dec. 4, 2010 at the Grand Island Mansion in Walnut Grove. Their engagement was announced in April 2010.

The bride-elect is the daughter of Charles and Jean Richardson of Manteca. She is the granddaughter of Lyle and Dorothy McCleerey of Manteca and Calvin Richardson and the late Virginia Richardson of Afton, OK. Her brother is Eric Richardson of Manteca.

Jennifer graduated from Manteca High School in 1997  and California Polytechnic State University San Luis Obispo in 2002. She is project manager, SDG Architecture & Engineering.

The benedict-elect is the son of Jim and Nikki Mastro of San Ramon. He is the grandson of Don and Eleanor Kranz of Redding, the late Donna LaMay Hendricks of Las Vegas, Catherine Mastro of Fremont and the late James Mastro Sr. of Fremont. His brother is Anthony Mastro and wife Brandy Mastro of San Ramon.

Mark graduated from San Ramon Valley High School in 1994. He is an IT Administrator, Sweetrush.