docking bridge

I know William Murdoch was stationed on the aft docking bridge when she left Southampton, and I found this photo captioned "Titanic in her way to Cherbourg" which indicates this is a photo shortly after her departure from Southampton. Could one of the black figures on the docking bridge be Murdoch?

I thought I had seen pictures of passengers up on the docking bridge and I wondered if it was an area that passengers were free to roam, or was it strictly for crew? I also wondered what sort of officers would be wandering around, keeping an eye on things/passenger behavior? I know a...

When I look at pictures of the stern of Titanic/Olympic, I can see several structures on the stern bridge. But I can't say for sure what they are. I'm pretty sure I can see some engine telegraphs, and a phone box on a small pole. But do I see a ship's wheel? I see something that looks...