Olympic & Empress of Britian

That's Royal Mail's ARLANZA between the two big girls.

Tug/Tenders in evidence: "Romsey"(1930, 509grt) Alexandra Towing (foreground, left); "Flying Kestrel" (1913, 700grt) Alexandra Towing (to right of "Olympic" "Calshot" (1930, 684 grt) Southampton, Isle of Wight and South of England RMSP Co Ltd (Empress Dock second from left with white funnel -'Red Funnel' not adopted till 1935)

Dang Eddy, I can see how you can ID some of the tugs and tenders in this shot, but some are to far away, and thus to small for me to be able to throw out those names with such certainty.
Thanks so much for your help.

Clyde (cunard61)

Clyde,

Eddy has them perfectly identified. Those tenders are as easily identified as the Whit Star ship and the Canadian 'boat'! ;-)

Stephen

"Calshot" at this date identifiable by virtue of open railings amidships.
http://andoverinfo.org.uk/calshot/wp-content/uploads/2014/03/Trials.jpg
She underwent various transformations over the years and of course is of particular interest being the only vessel in the picture still afloat.
http://andoverinfo.org.uk/calshot/