Dimies Tryphena Stocking Denison, or Demeis (, May 7, 1852 – September 2, 1940) was an American businesswoman, philanthropist and clubwoman. She was elected the president of the General Federation of Women's Clubs.
Career.
Denison's husband Charles Halbert Denison invented and patented the marginal index system for bookkeeping, known as thumb indexing, which scooped out places in books to enable the reader to turn to any section they want. When her husband died from heart failure in 1911, she took over the business, overseeing 15 staff and turning over $50,000 by 1936.
Clubwoman.
Denison was also a clubwoman and was vice president of the philanthropic newspaper club the International Sunshine Society, serving under the president Cynthia May Alden. She was elected president of the General Federation of Women's Clubs in 1902.