Diana Lynn Castle

Diana Lynn Castle (Osborn)

Diana Lynn Castle (Osborn), 64, was a beloved wife, mother, grandmother, sister, aunt, and friend. Born November 23, 1961, she grew up in Grove City, Ohio, and graduated from Grove City High School in 1981. She passed away peacefully at home, surrounded by her loving family on November 6, 2026.

Diana began her career with Nationwide Insurance at the age of 17 and dedicated nearly five decades to the company before retiring in 2023. Throughout her life, she was known for her quiet, gentle nature, generous heart, and unwavering devotion to her family. She was a constant source of love and support, always showing up for the people who mattered most to her. To her family, Diana was an angel among them and truly God's gift.

She loved being on the beach with her toes in the sand and a strawberry daiquiri in her hand, boating and floating with her hubby, camping with the kids, and spending time at their home away from home on Norris Lake, Tennessee. In her downtime, she enjoyed reading romantic novels, working on puzzles, watching HGTV, and playing games with her grand children.

Diana is survived by her loving husband of 38 years, Donald Castle; her daughter, Brittney (Eric) Schoene; her son, DJ (Amelia) Castle; her grandchildren, Kaydence and Maverick; her sister, Deborah (Larry Burchett) McGlone; her brother, Ed (Rita) Osborn; her sister-in-law, Deborah Barnett; her brother-in-law, Daniel Castle; her nieces and nephews, Shannon (Jon) Lentz, Shawn (Tiffany) McGlone, Shane (Danielle) McGlone, Teddy (Jordan) Osborn, Michael (Merrin) Osborn, Ashley (Jesse) Toney, Bradley (Jamilah) Barnett, Sarah (Tony) Burnham, and Zachary Castle; and her great-nieces and great-nephews, Riley, Ryan, Kyelie, Harley, Logan, Emily, Aubrey, Olivia, Claire, Ryan, James, and Anthony. She is also survived by many other beloved extended family members and friends. 

She was preceded in death by her parents, Jack and Catherine Osborn; her parents-in-law, Don and Sandra Castle; her brother, James Osborn; her brothers-in-law, Doug Castle, Gary Mullins, and Mark McGlone; her great-nephew, Travis McGlone; and her cherished yellow labs, Biscuit and Bailey.

Friends and family will meet at Newcomer Funeral Home, SW Chapel, 3393 Broadway, Grove City, OH, on November 23, 2026, at 1:45 p.m. to process to Sunset Cemetery for a 2:30 p.m. graveside service. Please join us to celebrate Diana’s life immediately following the graveside service at the Drury Inn & Suites, 4109 Parkway Centre Drive, Grove City, OH 43123.

Diana will be remembered for her gentle spirit, generous heart, and the love she gave so freely to her family and those around her. Her presence will be deeply missed, and her memory will be treasured always.

In lieu of flowers, the family requests that donations be made to The CLOVES Syndrome Community and Ronald McDonald House Charities of Greater Cincinnati, in honor of Diana's beloved grandson, Maverick