Mrs. Shirley Jeanette Milner Treadaway, 83, of Adairsville, died on Sept. 1, 2021, at a local health-care facility after an extended illness. Born at home on May 2, 1938, in the Hermitage community of Floyd County, Mrs. Treadaway was a 1956 honor graduate of Model High School. She married her husband, Ralph Franklin Treadaway, on July 6, 1956. They were married for nearly 60 years until his death in 2016. For close to 40 years, she was employed at Lockheed Aircraft Co. (now Lockheed Martin Corp.) in Marietta. She retired from Lockheed in 1996. Renowned among family and friends for her fortitude and resolve, Mrs. Treadaway was a vocal advocate for higher education, not only for her children and grandchildren but also for herself. At the age of 42—with two daughters in college and a son still in high school—she began taking evening courses at Kennesaw College (now Kennesaw State University) while continuing to work full time at Lockheed. In 1986, she completed her bachelor's degree in accounting with high honors. The following year, she passed the Certified Public Accountant exam. After retiring from Lockheed, Mrs. Treadaway devoted much of her time to genealogical research of both her family and her husband's family. This voluminous research ultimately enabled her and her two daughters to join the National Society of the Daughters of the American Revolution (NSDAR). She was an active member of the Rome-based Xavier Chapter, NSDAR, for many years, serving most recently as reservations coordinator for monthly meetings. Her research also allowed her to connect with newly discovered relatives as far away as Oklahoma. Mrs. Treadaway and her husband were active and devoted members of St. Mary's Catholic Church in Rome. They were previously members of St. Francis Catholic Church in Cartersville. She played an active role in mentoring new church members, particularly those converting to Catholicism as she had done in the 1970s. In addition to her husband, Mrs. Treadaway was preceded in death by her parents, James Daniel Milner and Ethel Moreland Murchison Milner; two half-brothers, James R. Milner and Thomas Daniel Milner; and a first cousin, Terry Murchison. Survivors include three children, Luann Treadaway Nelson (Mike) of Asheville, NC, Ella Kay Treadaway Mann (Howard) of St. Simons Island, GA, and Daniel Lawson Treadaway (Eric Still) of Atlanta; three grandchildren, Andrew Milner Mann of Deerfield Beach, FL, David Michael Nelson Jr. of Asheville, and Aubrey Jordan Nelson of Houston; sister-in-law Alice Milner of Opelika, AL; and nephews Thomas Milner of Albertville, AL, and Brent Milner of Opelika. Family will receive friends on Tuesday, Sept. 7, from 11:00 a.m. to noon at R. Dudley Barton & Son Funeral Home in Adairsville. A funeral mass will follow at noon. Due to Covid-19 concerns, masks will be required for all those attending the visitation and funeral mass. In lieu of flowers, gifts in Mrs. Treadaway's memory may be made to St. Mary's Catholic Church (smcrome.org), St. Mary's Catholic School (smsrome.org), or the Xavier Chapter, NSDAR (xavier.georgiastatedar.org).