The bottom stone was the foundation stone for the main building laid Tuesday 5 February 1907, and the middle stone was the foundation stone for the chapel, laid Tuesday 1 December 1908. The two stones were inserted on the wall of the current Mission building probably when the Siddeley Street institute was demolished. The stones are located in the courtyard on the wall of the former chaplain's office. next to the chapel.The stones are the few remnants of the first Central Institute.Photograph depicting the two foundation stones of the former Seamen's Institute located on Siddeley Street.siddeley street institute, reverend a. gurney-goldsmith, sir thomas david gibson carmichael (1859–1926), governor of victoria, lord henry stafford northcote (1846–1911), governor general of australia, flinders street mission, australian wharf