Helen P. MacKay, a longtime area resident, died in Locust Valley on Independence Day morning. The widow of John F. MacKay, she was 105 years old. She leaves three sons – John F. MacKay Jr. of Lloyd Harbor, Malcolm MacKay of Brooklyn and Centre Island, and Robert B. MacKay of Cold Spring Harbor. Mrs. MacKay also is survived by a granddaughter, four grandsons, and nine great grandchildren. A graduate of Briarcliff College, she was active in local charities. She will be greatly missed by all those whose lives she touched. Funeral Arrangements entrusted to Oyster Bay Funeral Home. www.oysterbayfuneralhome.com.