"I used to help in the stables, too, and that cup was so special."
It had sat on an electric organ in a corner of her lounge and was framed by a clock that sat on the wall above.
The intruder had broken a nearby window, specially targeting the cup. Nothing else was taken.
Campbell said the gold in the cup was estimated to be worth $50,000 but the sentimental value of the 40-year-old prize far outweighed any dollar value.
"It's priceless to us. We just want the cup back," said Campbell.
She feared it would be smelted down for its precious metal.
Friends and family were last night taking to social media to spread the word about the theft in a bid to see the stolen cup returned.
Granddaughter Shannon Campbell posted: "It's terrible!! My grandparents had that cup sitting proudly in the lounge for the last 40 years ... now some scumbag lowlife person/s have taken that away from them."
Campbell said she could still vividly recall the day Analight won the cup, earning her owners a share of the $75,000 winnings.
Cambridge police are asking anyone with information about the theft to contact them on 07 827 5531 or send a private message through their Facebook page.