Johnston, Caroline P. (Cunningham) of Lexington, April 3, 2018. Beloved wife of the late Walter D. Johnston. Loving mother of Mark D. Johnston and his wife Brenda of Lexington and Jennifer L. Duffy and her husband Tim of Burlington. Sister of William Cunningham of CA and the late Warren Cunningham. Caroline is also survived by her 2 beloved grandchildren, David and Andrew, and by many nieces and nephews. A funeral service will be held Saturday April 7 at the Douglass Funeral Home, 51 Worthen Rd. Lexington at 11:30am. Relatives and friends are kindly invited to attend. Visiting hours Friday from 6pm to 8pm. Donations in her memory may be made to the American Heart Association at www.heart.org . Private interment Westview Cemetery, Lexington.