Other sources say she was using "Ann Sutoro", when she died. Strange, given her second husband's name was Soetoro.
Well, spelling foreign names and such, especially if the foreign country doesn't use the Latin alphabet, is pretty hit or miss. Many a German and Scandinavian got their last names scrambled at Ellis Island or Galveston, and they did use the Latin alphabet, although many of the individuals could not read or write even in their native language.