13th President: Millard Fillmore, 1850
Time = 13 (Fillmore was the thirteenth president)
Fill more = Fillmore
Floss = 850 = 1850 became president
Mallard = Millard
It was taking a long time (13) for the candy man to fill more (Fillmore) of her container with candy floss (850 = 1850).
Connect Fillmore to Millard:
She needed to fill more (Fillmore) of the container because she had a giant mallard (Millard) duck to feed.
NOTE: The way Mammoth Memory remembers Millard is to think Millard – mallard.