Irene Ann Stegun passed away at the age of 88 in Danbury, Connecticut.
Irene Ann Stegun passed away on January 27, 2008, in Danbury, Connecticut. Her death marked the end of a long and impactful career in mathematics, leaving behind a legacy through the *Handbook of Mathematical Functions*, which continues to influence science and engineering. Stegun’s life was a testament to the power of perseverance and dedication in the pursuit of knowledge. Her contributions helped pave the way for further advancements in mathematical research and demonstrated the critical role women can play in the sciences. She is remembered not only for the monumental handbook but also for her role as a trailblazer in a predominantly male discipline.