Thornton notes that the phrase "Found drowned" was a stock formulation in newspaper headlines of the day. Gifford adds that "High water at Dublin bar" likewise comes directly from the popular press: it was the phrase used in the tidetables published in Thom's 1904 (p. 5 ff.).
Newspapers' use of the first phrase, Thornton observes,
derived "from the fact that 'found drowned' is the official
coroner's jury's verdict when a person is so found and no foul
play is suspected. Such an instance occurs in the Freeman's
Journal for March 29, 1904."
 The phrase was commonplace in other vehicles of 19th
century British culture. At mid-century, the English painter
of allegories George Frederic Watts tried his hand at social
realism in several striking works, including an oil painting
titled Found Drowned. The canvas shows a woman who has
been pulled from the Thames, presumably after committing
suicide to escape sexual disgrace.
Charles Dickens' Bleak House (1853) acknowledges the
frequency of such suicides. In chapter 57, when Esther
Summerson and Mr. Bucket are searching for Lady Dedlock, she
sees her companion talking with some policemen and sailors
against a slimy wall that holds a bill with the words, "'FOUND
DROWNED;' and this, and an inscription about Drags,
possessed me with the awful suspicion shadowed forth in our
visit to that place."