On a Sea of Glass states that the First Class boat train left Waterloo at 8:00 and arrived in Southampton at 11:30. The expected trip time was between 1:30 and 1:45, but there was a delay.
I looked up the footnotes for the Boat Train paragraph mentioned in "On A Sea Of Glass" (2015 3rd Edition), and it says the following:
''22 The train times from Waterloo to Southampton are listed in the 1910 reference the Scientific American Handbook Of Travel at 1 hour 44 minutes (page 319). A first hand account of the same passage on June 8th 1911 put the duration at 'about 90 minutes' (Railway and Travel Monthly july 1911 pg. 61.)
''23 Francis Browne is apparently the only one who took the first class boat train and later recalled the departure from Waterloo at 9:45. All other first class accounts the current authors have seen refer to it's departure at 8:00am some books and other histories have recounted that the Second and Third Class Boat Train from Waterloo was the early one, while the First Class Boat Train was the later of the two. However, it has proven difficult to find a first hand reference to this, despite the seemingly logical explanation frequently given for this timing. All we have to go back is the estimates given by passengers, and the known duration of the transit. Further evidence of this may come to light later.
Also as a quick joke, the Boat Train may have been delayed, but at least they didn't travel by Southern Rail!
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