The clue regarding the flood referred to the church’s first Reverend, George Gregory, who drowned within the flooded Molonglo River within the flood of 1851. In response to Anne Claoue-Lengthy in Rural Graves within the ACT: A historic context and interpretation (October 2006), “On 20 August 1851, when on a return journey to his dwelling in Canberry after visiting parishioners within the mountainous areas throughout the Murrumbidgee, he couldn’t be dissuaded from attempting to cross the flooded Molonglo River.” Apparently, Gregory was anxious to return to check for his remaining exams and had already been delayed per week by heavy snow and rain. Though a robust swimmer, the chilly water and powerful present was an excessive amount of for the 25-year-old and he was just a few metres from the north financial institution of the river when he threw up his arms and sank. His physique was recovered three days later, and he was buried at St John’s on August 29. His grave, inside the Campbell household vault, was initially close to the east wall of St John’s however when the church was enlarged in 1872, the extension lined the vault, thereby making a crypt.