Peggy Ann O’Brien of O’Fallon, Missouri passed away at the age of 41 on Tuesday, February 8, 2022. 

Peggy was born on March 12, 1980, and was the beloved daughter of Larry and Susan Kohler of Wentzville, Missouri.  She is survived by her loving husband, Tim O’Brien and two daughters, Aubrey and Kelsey O’Brien of O’Fallon, Missouri.  She is also survived by her stepson Jarrett O’Brien, fiancée Rachel Nifong and grandson Baylor O’Brien; brother Dale Kohler (Christine), sister Jennifer Killian (Josh), and sister Holly Kohler (Clint); mother-in-law Mary O’Brien, brother-in-law Jay Denney; three nieces and one nephew, Kayla Denney, Andrew, Emily & Rachel Killian; and several additional family members and friends.  

Visitation: Tuesday, February 15, 2022, 3:00 p.m. to 7:00 p.m. at Pitman Funeral Home, 1545 Wentzville Parkway, Wentzville, MO 63385, with service immediately following at 7 p.m. at the Funeral Home.

Memorials may be made to the nonprofit National Alliance on Mental Illness (NAMI of St. Louis), in care of Pitman Funeral Home, P.O. Box 248, Wentzville, MO  63385 or via the Pitman website.