The woman's went into labour outside an optical store, and delivered a baby boy.
"That was a very unique, one-of-a-kind experience," Joey Kwan, spokeswoman for the mall, said.
Kwan has spent the past few days trying to re-connect with the mall mom and the newborn, to no avail.
"It all happened in a very quick moment. That's why we are not able to get any information about the lady," Kwan said.
The woman was on the mall's second floor Saturday afternoon when her water broke. A male security guard, guided by 911 operators, began helping the woman through her delivery while waiting for an ambulance.
"He couldn't wait until that long," Kwan said.
The baby was born and a firefighter cut the umbilical cord, before the pair were whisked away to a nearby hospital.
Kwan said toys from mall merchants await the boy, and there will be cake every year on his birthday until he turns 18 — if only they knew how to get in touch.
Send tips to CBC reportersJason.Proctor@cbc.caandEmily.Elias@cbc.ca.