Police are appealing for public assistance to locate Heather Marks, who has been missing for more than 40 years, as part of this year's 'Forever Loved' Missing Persons Week 2025.
Heather Marks, then aged 53, was last seen walking towards Leichhardt swimming pool on Glover Street in Rozelle, about 9.30am on Wednesday 13 April 1983.
At the time of her disappearance, Heather was described as being of Caucasian appearance, of a medium build and was about 165cm to 170cm tall. She had grey hair and blue eyes.
Heather also lived with a number of medical conditions.
Despite efforts by her family and Leichhardt Police Area Command, Heather was never seen or heard from again.
In August 2008, the NSW Deputy State Coroner declared Heather was deceased. No finding was made regarding her manner or cause of death.
Heather is believed to have had a partner named 'Ray', who Heather's family believe was an interstate truck driver who drove the route between Sydney and Melbourne.
Heather's granddaughter, Natalie Jackson, is urging Ray – or anyone who may know more about him or her grandmother's disappearance – to come forward.
"We are really hopeful the passing of time means someone may feel more comfortable to come forward to help us uncover what happened to our grandmother," Natalie said.
"My mum has lost all of her siblings – she is the last one left – and I am desperate to get these answers for her.
"To everyone else my grandmother is a missing person, but to us she is just really missed."
Missing Persons Week is an annual national campaign to raise awareness of the issues and impacts surrounding missing persons and runs between Sunday 3 August and Saturday 9 August 2025.
This year's 'Forever Loved' campaign focuses on acknowledging the experiences of families of missing persons and the impact it can have on their lives.
Minister for Police and Counter-terrorism, Yasmin Catley MP said, ""More than 40 years have passed since Heather Marks was last seen, but her family's pain and unanswered questions remain as real today as they were in 1983."
"Missing Persons Week is about shining a light on long-term cases like Heather's and reminding the community that behind every missing person is a family left waiting for answers.
"No family should be left in the dark for four decades. If you know something, no matter how insignificant it may seem, please contact Crime Stoppers and help bring some peace to Heather's loved ones."
Assistant Commissioner Scott Cook, State Crime Command, said Missing Person's Week is a chance for police to put long-term missing people back in the public consciousness and continue the search for answers.
"In New South Wales, around 10,000 people go missing every year and sadly, some are never found. As Missing Persons Week begins, we stand in solidarity with those still searching for loved ones, and we acknowledge the deep pain carried by families and communities affected by these long-term cases.
"This week is more than a public awareness campaign, it's a call to action. It's about reigniting conversations, revisiting unresolved investigations, and reaffirming our ongoing commitment to bringing the missing home.
"The NSW Police Force remains resolute in its efforts, working tirelessly to reunite families and uncover answers.
"As we continue our investigations, we urge anyone with information, no matter how minor it may seem, about Heather Marks or any long-term missing person to come forward. Even the smallest detail could help bring closure to a family who has waited decades," A/C Cook said.
For more information on the campaign, visit: www.missingpersons.gov.au
For more information on Heather Marks, visit: https://www.missingpersons.gov.au/search/nsw/heather-marks
Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au. Information is managed on a confidential basis. The public is reminded not to report information via NSW Police social media pages.
