Lyle George Dieckmann Jr.

Lyle George Dieckmann, Jr. passed away peacefully on July 31, 2026, held by his faith in God and the love of his close friends and family. He was born to Lyle George Dieckmann, Sr. and Susan Charlene Dieckmann on September 19, 1944, in Oklahoma City, Oklahoma. The oldest of four children, he was a devoted big brother to his sister, Judy and brothers, David and Steve.

Lyle lived in Oklahoma City most of his life, graduated from Harding High School in 1964 and later served in the Air Force Reserve. In 1969, Lyle founded Mayfair Key and Lock, building the business into a successful and respected company. A well-respected locksmith, Lyle was known for his hard work, dedication, and commitment to doing things right the first time. With the help of his exceptional employees, he earned a reputation as an accomplished and dependable businessman.

Lyle was a man who loved his work, his family, nature – particularly the mountains and helping others. He was a generous and thoughtful friend who maintained solid relationships with people across every era of his life: childhood friends, high school friends, and work colleagues. He had a gift for making people smile, whether by giving a thoughtful gift, delivering a silly remark or by sharing a funny story from years past. His dry sense of humor and ability to bring laughter to those around him were among the qualities that made him special.

He was preceded in death by his parents, his sister, Judy Settle, and his brother, David Dieckmann. He is survived by his daughters, Brooke Dieckmann Wilson and Bliss Dieckmann Carr, his brother, Steve Dieckmann, his nephew, Scott Settle, his four nieces, Ashley Hixson, Emy Settle, Amanda Arney, and Amber Hartmann, and his best friend, Charlie McCulley.

Lyle touched the lives of many and leaves behind a legacy through the business he built, the people he helped, the laughter he shared, and the example he set through a lifetime of hard work and dependability. He will be lovingly remembered by his family, friends, employees, customers, and all who had the privilege of knowing him.

A funeral service will be held at 2:00 p.m. on October 16, 2026, at Bill Merritt Funeral Service, with inurnment to follow at Chapel Hill Memorial Gardens.