McKersie, Nancy C. (Crosier) of Arlington on August 13th. Beloved wife of Robert B. McKersie. Loving mother of William and his wife Katherine O’Meara, Elizabeth, Robert and Ali and husband Ev Mann. Cherished grandmother of seven adoring grandchildren. Dear sister of the late Charlotte Orrall. In lieu of flowers please consider a donation in memory of Nancy to Northfield Mount Hermon School at nmhschool.org/support-nmh or Perkins School for the Blind at perkins.org/donate. Arrangements are private and under the care of DeVito Funeral Home. Please visit devitofh.com to view an online guestbook.