Marlene Dee Christiansen, 73, of Lake Placid went home to be with her Lord on Tuesday afternoon July 14, 2020 at her residence.  Marlene was born on June 28, 1947 in Wyandotte, Michigan to parents Mary and David Buchanan.  Marlene lived in Lake Placid since 2000 moving here from Largo, FL.  She was a retired mechanical and plastics engineer who worked with plastics and injection molding systems.  Always hard working, she completed her mechanical engineering Bachelors Degree (graduating Suma Cum Laude) while working full time and raising a family.  After retiring, Marlene ran Mana Ministries food pantry of Lake Placid for many years, and volunteered regularly with the church.  She enjoyed reading, woodworking and assisting people.  She is survived by her loving husband, John and son John, Jr.  A service to celebrate her life will be held 2:00 PM Monday, July 20, 2020 at the Community Church of God 735 S Sun "N Lakes Blvd. Lake Placid, with Pastor Joe DeHart officiating.  Memorial contributions in her memory can be made to Community Church of God of Lake Placid or Recovery International (recoveryinternational.org). Words of comfort to the family can be made by visiting www.scottfuneralservices.com .  Arrangements entrusted to the Scott Funeral Home 504 W. Interlake Blvd., Lake Placid, FL 863-465-4134.