As the PS Waverley celebrates the 65th anniversary of its first sailing, the hunt is on to find any surviving crew.
Any passengers who were on the first trip have also been invited along to reminisce about their experiences.
This year, as well as the vessel's birthday, the Waverley is celebrating the 200th anniversary of steam navigation on the Clyde.
That began with the launch in 1812 of Henry Bell's Comet, the world's first commercial steam-driven ship, which was built in Port Glasgow.
The Waverley begins its summer season of sailing tomorrow.
If you were involved with the maiden voyage, call Aura PR on 0141 337 6712 or 0141 337 6813.