...The so-called 'elephant angel' was Denise Austin, who used to walk Sheila about the streets of north Belfast calling into shops where the calf was treated to portions of stale bread.
Denise died in 1997 but the long-running puzzle was solved by one of her surviving relatives, second cousin David Ramsey.
"Denise was eccentric and lived in a rather exotic home in North Belfast called Loughview House," he said.
The Belfast man explained that Sheila stayed in her enclosure at the zoo during the day and went home to Denise's house at night.
"When the head keeper Dick Foster left work, Denise took Sheila from her enclosure, walked her a short distance to her house at 278 Whitewell Road, and walked her back up to the zoo in the morning, sometimes stopping at a shop, the Thrones Stores, on the Whitewell road for stale bread.
"It was also known in the area that she took Sheila for evening walks. During the night Sheila slept in the Austins' garage." ...