Charlotte A. Mater

Charlotte A. Mater

(nee Grant)

Age 86, of Lockport passed away peacefully on Wednesday, September 2, 2026, with her loving sister by her side. Born in Joliet, raised in Lockport, lived in the West, West of the Mississippi for many years, and moved back to Lockport in 2017. Graduated from St. Joseph Catholic School, Lockport in 1953, and Lockport Township High School in 1957. Retired from Argonne National Laboratory in 1974 after 17 years of dedicated service. Charlotte was an administrative assistant for the American Cancer Society, CA for 12 years. Member of St. Joseph Church, Lockport.

Preceded in death by her parents, Ralph and Rose (nee Rodeghiero) Grant; one brother, Lawrence Grant; and a niece, Leslie Hollarbush.

Survived by her two sisters, Janis (Leo) Michalak, and Rachael (late Richard) Favero; sister-in-law, Sue (Ramos) Grant; three nieces, seven nephews, many other cherished family members and friends.

Charlotte’s family would like to thank the entire staff at Sunny Hill Nursing Home for their exceptional care over the past five years.

In lieu of flowers, memorials to St. Joseph Church, Lockport or Lightways Hospice in Charlotte’s name would be greatly appreciated.

Cremation Rites have been respectfully addressed.

Memorial Mass Celebrating Charlotte's life will be held at St. Joseph Catholic Church, 410 S Jefferson St. Lockport, IL 60441 on Friday, September 25, 2026 at 10:00am. Inurnment at Resurrection Catholic Cemetery, Romeoville on Friday, September 25, 2026, at 2:30pm.

Arrangements under the care and direction of O'Neil Funeral Home, Lockport, IL.