 Tristram's was also invited to take part in the merger, but declined.Though the claim "Since 1865" is present on Kirks' current packaging, what event this date refers to is unclear, as it does not coincide with either the founding date of Helidon Spa Water Company, Owen Gardner & Sons, or the establishment of the Kirks name itself.During the nineteen-eighties, the Kirks, Shelleys (NSW) and Gest (WA) brands shared a range of drinks with consistent packaging style and marketing material.