Racine – Mary Margaret (nee: Mortenson) Castillo, age 67, passed away peacefully at home, with family at her side, on Friday, April 30, 2021. Mary was diagnosed with breast cancer 12 years ago – fought diligently for two years and had 10 years of remission, before it came back just a few months ago.

Mary was born in La Crosse, WI on May 9, 1953 to the late Edward and Dorothy (nee: Karis) Mortenson. She was a 1971 graduate of Mary D. Bradford High School and went on to earn a degree in accounting from Gateway Technical College. While at Gateway, Mary met the love of her life, Reynaldo "Ray" Castillo. They were united in marriage on July 18, 1973.

Mary was employed in the accounting department at Ganton Technologies and, later, by L&S Electric, from where she retired. Among her interests, Mary enjoyed tending to her beautiful flower gardens, had a great eye for decorating, and was always on the search for a "great deal" at local thrift stores. Above all, Mary was all about her family. She was happiest while spending time with all of her loved ones.

Surviving are her loving husband of 47 years, Ray; children, Tony (Carrie) Castillo, Christopher Castillo and Jenny (Liz Turnes) Castillo; grandchildren, Ruben (Joodeth Cuevas) Castillo, Marissa (Brandon Johnson) Castillo, Kyle (Melissa) Chernouski, Nicola Chernouski and Ryan Anderson; great-grandchildren, Addison, Jackson, Makaya, Myles, Jayda and Toryn; sisters, Karen (Tony) Cline, Sandra (Todd) Hermann, Renee (Jeff) Johnson and Barbara (Greg) Jaeger; brother-in-law, Ricardo (Gloria) Castillo; nieces, nephews, other relatives & friends – too numerous to mention all by name.

In addition to her parents, Mary was preceded in death by her brothers, Michael (Kathy) Mortenson and James Mortenson.

Services celebrating Mary's life will be held in Draeger-Langendorf Funeral Home on Saturday, May 8, 2021 at 9:00 am. Interment will take place at Holy Cross Cemetery, Hwy 32. A reception will follow. Visitation will be in the funeral home on Friday from 4:00 – 7:00 pm and on Saturday from 8:00 – 9:00 am.

A heartfelt note of thanks to Dr. Michael Mullane & staff, Aurora Cancer Center, Advocate Aurora Hospice & Palliative Care for the compassionate care & support given in Mary's time of need. May God bless all of you!