In addition to his scientific and business endeavors, Thomas was also an active philanthropist and supporter of various educational institutions and charities. He was a founding member of the American Association for the Advancement of Science and served as its president from 1872 to 1874. He was also a member of the National Academy of Sciences and the American Philosophical Society.
Throughout his life, Thomas received numerous honors and awards for his contributions to science and technology. He was awarded the Congressional Gold Medal in 1928 and was inducted into the National Inventors Hall of Fame in 1973. He was also recognized internationally and received awards and honors from countries such as France, Germany, and Italy.
Thomas died on October 18, 1931, at the age of 84. He left behind a legacy of innovation and scientific achievement that continues to influence and inspire people around the world.