Gunilda was a steel-hulled Scottish-built steam yacht in service between her construction in 1897 and her sinking in Lake Superior in 1911. Built in 1897 in Leith, Scotland by Ramage & Ferguson for J. M. or A. R. & J. M. Sladen, and became owned by F. W. Sykes in 1898; her first and second owners were all from England. In 1901, Gunilda was chartered by a member of the New York Yacht Club, sailing across the Atlantic Ocean with a complement of 25 crewmen. In 1903, she was purchased by oil baron William L. Harkness of Cleveland, Ohio, a member of the New York Yacht Club; she ended up becoming the club's flagship. Under Harkness' ownership, Gunilda visited many parts of the world, including the Caribbean, and beginning in 1910, the Great Lakes.