Lois Wilfred Griffiths

Lois Wilfred Griffiths (June 27, 1899 – November 9, 1981) was an American mathematician and teacher. She served as a researcher, mathematician, and professor for 37 years at Northwestern University before retiring in 1964. She is best known for her work in polygonal numbers. She published multiple papers and wrote a textbook, ''Introduction to the Theory of Equations,'' published in 1945. Provided by Wikipedia