Diana Lynne Youngblood

Dinah "Diana" Lynne Knickerbocker Youngblood, 59, of Tulsa, Oklahoma, passed away peacefully on March 28, 2026, in Tulsa.

Diana was born on August 19, 1966, in Peoria, Illinois, to Robert Lee Knickerbocker and Kay Francis (Ragusa) Reffett. From a young age, she showed a quiet strength and a deep love for family that shaped every part of her life.

She attended Tulsa Junior College and spent many years working as a Quality Inspector at Pryer Aerospace. Diana took pride in her work and was known for her reliability, patience, and attention to detail-qualities that also defined her as a person.

On August 16, 1986, Diana married Kévin Eugene Youngblood, beginning a love story that spanned 39 years. Together, they built a home filled with love, perseverance, and devotion. Diana was a proud mother to Jennifer, Kimberly, Kévin, and Scott, and her heart only grew larger when she welcomed and adopted Scott "Junior" and Michael, loving them as her own without hesitation.

Diana found joy in life's quieter moments. She loved getting lost in a good book, working on puzzles, and simply spending time with those she loved. She was gentle, kind, and deeply caring-always thinking of others before herself. As a wife, mother, grandmother, sister, and friend, she gave endlessly and loved unconditionally.

She leaves behind her devoted husband of 39 years, Kévin Youngblood of Tulsa; her children, Jennifer Campbell and her husband Brandon of Broken Arrow, Kimberly Helzer of Broken Arrow, Kévin Youngblood and his wife Amberley of Tulsa, and Scott Youngblood and his wife Tanya of Tulsa; her adopted children, Scott "Junior" and Michael of Tulsa; and her precious grandchildren, Aakasha, Peyton, Norma Jean Mayberry, Isaiah, Lyllie Dawn, Mae, Thomas Campbell, Jonathon and Kayleigh Miller, Aydn, Kaydn, and Kamree Youngblood, and Athena and Alexander Harris, each of whom held a special place in her heart.

She is also survived by her sister, SantaMaria and her husband Justin of Glenpool, and her brother, Robert Knickerbocker Jr. of Oologah, along with many other loving relatives, nieces, nephews, cousins, and friends.

Diana was preceded in death by her parents, Robert Knickerbocker and Kay Ragusa; her stepfather, Emil Ragusa; her brothers, Ricky, Timothy, and Steve; and her beloved companion, Maxie, who never left her side.

Diana's legacy is one of love, devotion, and quiet strength. She will be deeply missed and forever remembered by all who were blessed to know her.