It’s taken almost a year and a half for her to come up with a possible answer.

Since she and her siblings were all abandoned in the same manner — less than two hours after being born, naked, wrapped in a blanket and left in a public area where they could be easily found — Weinreich-Keall combed through B.C. records looking for newborns abandoned under similar circumstances.

To her surprise, nothing fit the pattern or timeline. Becoming increasingly frustrated, she wracked her brain trying to find a reason.

Eventually, the answer dawned on her.

Weinreich-Keall’s maternal grandparents came to Ontario from Norway during the Second World War, settling in Brampton and surrounding regions. Her biological mother was born in Ontario and moved to Prince Rupert, B.C., after her father got a new job.

With this information, she began to search for records of abandoned babies in Ontario and discovered Sarah Michelle’s story.

In conversation with those who knew her biological mother, Weinreich-Keall discovered that she was notorious for picking up and leaving B.C. She now believes that her biological mother could have easily travelled to Ontario, given birth and left the baby.

Taking into account this information and time frame, Weinreich-Keall’s believes Sarah Michelle could be her half-sister.

“If (Sarah Michelle) isn’t my half-sibling, then it would be a wild coincidence,” she said.

Now, as Weinreich-Keall begins to narrow down her decades-long search, she is looking for somebody with information about what happened to Sarah Michelle after the baby was adopted or her current whereabouts. She would be 38 years old.

But Weinreich-Keall wants to make it clear that she does not want to encroach on someone else’s life. It's possible Sarah Michelle, whose name was changed by her adoptive parents, may not even know she is adopted or want to meet biological siblings.

All information and identities would be confidential, Weinreich-Keall insists.

“It’s not for me to tell this woman’s story. This is the only way I could go about this. If I could help and give her this golden platter of answers, I would be so honoured,” she said.

Weinreich-Keall said she would pay for DNA testing.

Anybody with information about baby Sarah Michelle or any information that would be helpful to Janet Weinreich-Keall is asked to phone her anonymous tip line, 1-778-650-0515.