Maggie Butcher (nee Knox) contacted the Bendigo Advertiser on Thursday to let us know the couple pictured was in fact her grandparents.

“To see that on Facebook, I couldn’t believe it,” she said.

Ms Butcher’s niece – or the couple’s great-granddaughter – Breeanna was the one to spot the call for help on social media.

But neither Ms Butcher nor Breeanna knew how the photograph ended up in a Niddrie Chemist Warehouse.

Ms Butcher’s best guess was that a relative in Tullamarine could have taken it into the store.

“I’m just amazed that here’s my grandparents on Facebook.”

WEDNESDAY: A chemist from Niddrie in Melbourne is hoping to return an old photo to its rightful family.

Jessica Kayrooz found the photo taken in Kangaroo Flat of couple Anne and John Knox in the lost property box at her Chemist Warehouse store in Keilor Road, Niddrie.

“I think a customer might have dropped it in the store. It is such a lovely photo,” she said.

“Hopefully we can reunite the family with this photo. I know if it was my family I would love to have it.

Some amateur sleuthing by Jessica told her an Annie and John Knox were buried in the Kangaroo Flat Cemetry. John died in February, 1945, and Annie died in May, 1983.

She is not sure if it is the same Annie and John Knox.

“I think the photo is from the 1940s and some searching helped me find a couple of the same name buried together but I’m not 100 per cent sure it is the same couple,” Jessica said.

“It is a nice portrait show, there is no date on the photo, just the names and where it was taken.”

Anyone with information can email chris.pedler@fairfaxmedia.com.au