Astor was the wealthiest passenger aboard the ship and one of the richest men in the world; his great-grandfather John Jacob Astor was the first multimillionaire in America. Among others were industrialist magnate and millionaire Benjamin Guggenheim; Macy's department store owner and former member of the United States House of Representatives,[12] Isidor Straus and his wife Ida; George Dennick Wick, founder and president of Youngstown Sheet and Tube Company; millionaire streetcar magnate George Dunton Widener; vice president of Pennsylvania Railroad, John Thayer and his wife Marian; Charles Hays, president of Canada's Grand Trunk Railway; William Ernest Carter and his wife, American socialite Lucile Carter; millionaire, philanthropist and women's rights activist Margaret Brown; tennis star and banker Karl Behr; famous American silent film actress Dorothy Gibson; prominent Buffalo architect Edward Austin Kent; and President William Howard Taft's military aide, Major Archibald Butt, who was returning to resume his duties after a six-week trip to Europe. Swedish first class passenger and businessman Mauritz Håkan Björnström-Steffansson, owned the most highly valued single object on board; a masterpiece of French neoclassical painting entitled La Circassienne au Bain, for which he would later claim US$100,000 in compensation (equivalent to US$2.5 million in 2018).[13]