Margaret A. Ritchie, 81, of Atlanta, died December 6, 2011. Mrs. Ritchie was a resource teacher at Holy Innocents’ Episcopal School for 25 years. She was also an active member of Central Presbyterian Church where she was a volunteer in the Central Outreach and Advocacy Center and with Atlanta Habitat for Humanity. She was preceded in death by her husband, William B. Ritchie and is survived by her son, William Avery Ritchie; daughter, Catherine Ritchie Patton; and grandchildren, Harrison William Ritchie, Margaret Carrie Patton, Carter William Patton, Ellen Avery Patton. In lieu of flowers contributions may be made to Central Outreach and Advocacy Center, 201 Washington St., SW, Atlanta, GA 30303 or to Atlanta Habitat for Humanity, 519 Memorial Dr., SE, Atlanta, GA 30312. A memorial service will be Sunday, December 18, 2011 at 2 o’clock at Central Presbyterian Church.