Nan McKowen passed away peacefully at Oakwood Village in Zachary, LA on Monday, January 9, 2023. Nan Angela Young McKowen was born in New Orleans on October 22,1930 to Joseph Andrew McConnell Young and Mildred Angela Wild Young. She attended Dufrocq Elementary and graduated from Baton Rouge High School. She then continued her education and graduated from Louisiana State University in Elementary Education and subsequently taught at several elementary schools. She was a member of Kappa Delta Sorority. She married Thomas “Chalmers” McKowen, III on November 15, 1952. They were married for 50 years until his death. She was involved in a host of activities including working in many volunteer capacities at the Plains Presbyterian Church. She taught Sunday School and Vacation Bible Schools. She was a member of the Alexander Stirling Chapter of the Daughters of the American Revolution and the Portfolio Book Club. She and her husband were also involved in many activities as a couple. They were members of The Baton Rouge Assembly, the Louisiana Cattlemen’s Club, and Fennwood Hills Country Club. Chalmers was a founding member of Silliman Institute, where he and Nan were active supporters. Her biggest joys were her children, grandchildren, and great-grandchildren. She is survived by a son Joseph Young McKowen; three daughters, Marie Angela McKowen Thornton and her husband Earl Matthew Thornton; Nan Emily McKowen Rabalais and her husband Myron James “Tic” Rabalais; and Cary Adele McKowen Henry and her husband Michael David “Mike” Henry; a daughter-in-law Elizabeth Ann “Liz” Batchelor McKowen; a brother Joseph McConnell Young; and a sister-in-law Myrtle Joy Ledbetter Young. She is also survived by five grandsons: Matthew Thomas “Matt” Thornton and his wife Catherine English “Cat” Josey Thornton, Michael McKowen “Mike” Thornton and his wife Kristen Michelle Dann Thornton, Dr. James Grant “Jim” Rabalais and his wife Lauren Elisabeth Browning Rabalais, Dr. Reid Lanier Rabalais and his wife Laine Mallory Culotta Rabalais, and Colton Lee Courrege and his fiance Anna Nicole DeLaney. Four granddaughters; Bonnie Elizabeth McKowen Rader and husband Aaron Travis Rader, Lauren Adele Courrege and fiance Joshua Peter “Josh” Crow, Anna Marie Rabalais and Michaela Grace Henry. Five great-grandsons Austin Thomas Rader, Kowen Matthew Thornton, Rhett English Thornton, Carter Michael Thornton, and Beau Everett Thornton, Five great-granddaughters Alice Rhea Thornton, Sutton Elizabeth Rader, Emma Jane Rabalais, Eva Marie Rabalais and Millie Paige Rabalais. In addition to her parents and husband, she is preceded in death by two sons, Thomas Chalmers ”Tom” McKowen, IV and Lanier Johnston McKowen, and a brother Elisha Ashe Young. The family wishes to thank the wonderful staff at Oakwood Village. A family only graveside burial will be at the Young Family Cemetery. Pallbearers will be Aaron Rader, Matt Thornton, Mike Thornton, Jim Rabalais, Reid Rabalais, and Colton Courrege. In lieu of flowers, please make donations to the Plains Presbyterian Church, Silliman Institute, or a charity of your choice.