JG Johnstone Colac pioneer’s story revealed Historian Dawn Peel thought she had finished writing about Colac and district history, until she started researching the influence that JG Johnstone had on Colac. By Greta LannenOctober 15, 2021 Historic Colac home opens to the public People can appreciate the grandeur of one of Colac’s oldest homes when Airdrie opens its doors this weekend. By A Staff ReporterApril 8, 2019