"Who tried to win back the America's Cup from the New York Yacht Club 5 times between 1899 and 1930 in boats called ""Shamrock""?"
Shamrock (yacht) in the autumn of 1899, towed by Lipton's steam yacht, "Erin". She was subsequently refitted to serve as a trial horse for "Shamrock II" and "Shamrock III". Shamrock (yacht) Shamrock was a racing yacht built in 1898 that was the unsuccessful Irish challenger for the 1899 America's Cup against the United States defender, "Columbia". "Shamrock" was designed by third-generation Scottish boatbuilder, William Fife III, and built in 1898 by J. Thorneycroft & Co., at Church Wharf, Chiswick, for owner Sir Thomas Lipton of the Royal Ulster Yacht Club (and also of Lipton Tea fame). However her draft was too great
Columbia (1899 yacht) Columbia (1899 yacht) Columbia was an American racing yacht built in 1899 for the America's Cup races. She was the defender of the tenth America's Cup race that same year against British challenger "Shamrock" as well as the defender of the eleventh America's Cup race in 1901 against British challenger "Shamrock II". She was the first vessel to win the trophy twice in a row (a record not equaled until "Intrepid"s back-to-back wins in 1967 and 1970.) "Columbia", a fin keel sloop, was designed and built in 1898-9 by Nathanael Herreshoff and the Herreshoff Manufacturing Company for owners J. Pierpont