who was the first lady to decorate the white house for halloween?

best answer
Mary Geneva known as Mamie Eisenhower was the wife of President Dwight D. Eisenhower and First Lady of the United States from 1953 to 1961. Having publicly decorated the White House Halloween-themed for the first time in 1958 White House History reports that Mamie Eisenhower hosted a lunch for the wives of staff members in the State Dining Room.