Mary Beth Mack of Riverhead died on Nov. 24, 2021 at Good Shepherd Hospice in Port Jefferson. She was 70 years old.

She was born on Jan. 15, 1951 in Greenport to George R. and and Beth Y. (Tuttle) Dettner. She attained a bachelor’s degree. She worked as a secretary for Riverhead High School.

She is survived by her husband David, daughters Addie (Geoff) Herzog and Nora Mack (Jared Hallock) and by her grandchildren, Keegan, Thea, Makenna and Victor.

Cremation was private. To pay tribute, visit the funeral home’s website.

Funeral arrangements were entrusted to the care of Tuthill-Mangano Funeral Home.

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