This photo is interesting, it is recorded as 38-42 Gertrude Street but it is clearly at 78 Gertrude Street, being the last house in row of the Glass Terrace. The history below would suggest that Barnes would have moved to 617 Brunswick Street in 1906, which is when Bennett moved in, but I have not verified this as yet. The dentist seems to be built onto the front of the terrace.
Albert Edward George Bennett (Dentist)
“Albert was born in Castlemaine, Victoria, in the year 1863, and is a son of the late Mr. Benjamin Bennett, one of the early pioneers of the colony, and a well known business man in Melbourne. When at an early age, his parents removed to New Zealand, remaining there for some years, and eventually returned to Melbourne. On the voyage back, which was very slowly accomplished in those days, they had a thrilling experience. Leaving New Zealand in a sailing vessel, very heavy weather was soon encountered, which sprung the ship’s timbers, causing her to leak badly. The pumps were set to work and had to be kept going night and day, while the cargo and passengers’ luggage were thrown overboard to prevent the ship from foundering. They eventually succeeded in getting into Nelson. Passages were again secured and the voyage continued in the steamer ‘Gothenburg’ which vessel, a few days after getting to sea caught fire, the flames raging for several days and threatening total destruction, but the conflagration was ultimately got under and the vessel reached her destination in safety. Completing his education in Melbourne, Mr. Bennett was subsequently articled to the dental profession with Mr. Otto Kolsch D.D.S late of Elizabeth Street, Melbourne, with whom he qualified to practice as a dentist under the Act. Commencing the practice of his profession in 1885, he became widely known in the North-Eastern and Western districts of Victoria. He afterwards successfully established himself in Sydney NSW and finally succeeded to the practice which he now conducts in Fitzroy. Mr Bennett is a well-known member of various institutions including the Masonic craft, and at present occupies the position of Junior Warden in the Kent Lodge, No. 31 V.C.” (The Cyclopedia of Victoria, 1903-1905, Vol 1, p477-478)
The practice referred to above was located at 78 Gertrude Street, Fitzroy – I believe this is the same address as 40 Gertrude Street (1906-1915) where they were from 1906, which may align with when Barnes moved to Brunswick St.
It appears they then moved to 14-16 Gertrude St (1919-1952). (Electoral Rolls: 06,12,13,15,19,24, 27, 28,31, 34, 36, 49)
Albert married Amy Barwell in 1897, and together, they had four children: Amy Vera (1901), Burleigh Mannington (1904), Thelma Violet (1906), Edna Mavis (1909). Amy passed away in 1930 and Albert in 1952.