Mindy and Lonnie Delfiner of Rydal, and Dr. Jeffrey Null of Kingston, Pa., announce the engagement of their children, Samantha Delfiner and Greg Null. Greg is the son of the late Anne Null.

    Samantha, a graduate of Boston University with a bachelor's degree in psychology, earned a master's degree in social work at Bryn Mawr College. She is a social worker on the Brain Injury Service at the Hospital of the University of Pennsylvania.

    Greg, a graduate of Pennsylvania State University, holds a bachelor's degree in marketing, and is currently the sales manager for the Philadelphia Apartment Guide.

    Sharing in the couple's happiness are Samantha's brother, Adam Delfiner, and Greg's brother and sisters, Michael Null, Kerry Morris and Haley Toledano.

    Samantha is the granddaughter of Max Snyder and the late Shirley Snyder of Cheltenham, and the late Silvia Delfiner and the late Jerry Delfiner of Penn Valley. Greg is the grandson of Robert Fortinsky and Shirley Fortinsky of Kingston; the late Dr. Robert Null and the late Janice Null of Philadelphia; and the late Ted Arnold and the late Beverly Arnold of Edison, N.J.

    The couple is planning a fall wedding.