The story here is that B 63 rolled into the turn table pit at Geelong Loco depot, in about 1979, there was also a B class, No 64 or 65 that rolled into the turntable pit at Seymour, the other consecutive B class number was at Ballarat Loco that night, story goes the rang up Ballarat Loco and told them to make sure the Hand Brake was on tight.
I'm not sure, but that person with the camera in the middle left, with the grey top on, looks like Phil Hayward, a night shift welder at the Geelong Ford Factory, he was killed, along with 5 other people, at Farm House Corner, on the Hume Hwy, between Gunning and Yass, opposite Bill Granger's farm. A LTL Louisville, one of Grays, went around the corner South bound and lost it, his trailer took out three North bound cars with 2 occupants each.
Also just near the edge of the turn table looks like Wheetie Munro and walking towards him carrying a bag, looks a little like Dave Hewitt, or more likely Bernie Baker.
This incident happened on the morning of Friday, the 23rd of November, 1979, as told in a comment below by Geoff Winkler.