He went to the United States in his youth.
In 1912, Mr. Anderson was returning to his home in New York City after a business and pleasure trip to England. He was a Wall Street stockbroker and was married to the former Flora Makley, daughter of John F. and Anna E. Makley. They lived on Manhattan's Upper West Side. The Andersons had no children. Mrs Anderson did not make the trip with her husband and had remained in New York.
Harry Anderson boarded the Titanic at Southampton with his dog, a chow-chow he named Chow-Chow (ticket number 19952, £26 11s) and occupied cabin E-12. He left the ship in Lifeboat 3 which was one of the first boats to leave. His dog din't make it and Anderson claimed $50 for his lost pet.
Back in New York, he was commodore of the yacht division of the New York Athletic Club. In his later years, he was a member of the Larchmont Yacht Club, the same club in which fellow survivor, Frederick Hoyt, was also a member.
Anderson's wife Flora became dead on December 7th, 1937. At the time of his own death in New York on November 23rd, 1951; at the age of 87, he left no surviving relatives in the United States.
Harry Anderson and his wife were both buried at Woodlawn Cemetery in New York City.