Marquedaunt, Ellen “Helen” (DeMarco) of Cambridge. January 16th. Beloved wife of the late Stanley J. Marquedaunt. Loving mother of Jayne E. Marquedaunt of Cambridge. Relatives and friends are invited to visit in the DeVito Funeral Home 761 Mt. Auburn St., WATERTOWN on Friday from 8:30 – 9:30 am and to her funeral mass at 10:00 am in St. Peters Church. Burial to follow in Cambridge Cemetery. Donations can be made in memory of Helen to a favorite charity of your choice. Visit devitofuneralhome.com to send an online condolence.