You are so lucky to have so many lovely family photos. The experts will be along soon to date these for you but I just wanted to comment that Scotland Yard is in London and is the headquarters for the police. Not sure if this is what you are referring to.
Have you asked for help tracing your Bowie family? You should start a new thread on the Scotland board if you would like some help - give details of everything you know about the family and provide a link to this thread with the photos, as I'm sure everyone will be inspired to search for them if they have some (probable) faces to put to the names.
Just to add that I don't think the chap wearing the beret looks very nautical at all, but I may be wrong.
I expect the families were fairly well to do - most of them (some more than others

) have a well to do look about them.
PS, try googling the photographers - there is some information about them online.