Bobbi and Carl Mason of Philadelphia announce the engagement of their daughter, Jaclyn Michele, to Douglas Keith Rosenblum, son of Jill and Norman Rosenblum of Wynnewood.

    Jaclyn, a graduate of the Baldwin School, earned a bachelor's degree in biology at Brown University and a law degree at the Villanova University School of Law. She is an associate in the patent litigation department of the law firm of Connolly Bove Lodge and Hutz in Wilmington, Del.

    Douglas, a graduate of Lower Merion High School, holds a bachelor's degree in accountancy from Villanova University and a law degree from the Villanova University School of Law. He is an assistant district attorney with the major-crimes unit of the Montgomery County District Attorney's Office.

    Jaclyn is the granddaughter of the late Lillian and Milton Budin of Hartford, Conn. Douglas is the grandson of Rae and Harry Rosenblum of Penn Valley, and the late Hedda and David Komins of Penn Valley.

    The couple is planning an October wedding.