John D. Nystrom, DDS, age 89, of Geneseo formerly of Houghton, NY, died Monday, March 23, 2026 at the Teresa House in Geneseo. He was predeceased by his parents, Raymond and Elizabeth Davies Nystom.

He is survived by his loving wife, Martha Atkinson Nystrom, children, Bethany (Craig) Wadsworth of Geneseo, Nancy (Martin) Crawford of Wallingford, PA, Karl Nystrom of Beaver Falls, PA, grandchildren, Laura (Paul) Wlosinski, Emily (Megan) Wadsworth, John (Kylie) Wadsworth, Rebecca (Travis) Wamsley, Andrew (Vicki) Crawford, Hannah (James) Blaser, great grandchildren, Eloise Wlosinski, Wren Wadsworth, Abigail and Emilia Wamsley, several nieces and nephews.

A graduate of Roberts Weslyan College (1958) and UB School of Medicine and Dentistry (1963), John enjoyed a long career in dentistry as Houghton NY's sole dental practice for over 40 years. He was an avid runner having completed many 5K and 10k runs and 3 marathons. He was added to the Roberts Wesleyan College Sports Hall of Fame in 1985 and was named Alumnus of the Year in 1978.

John spent his entire life in service to his community. Along with contributing to various charities and serving in many ways alongside his wife, Martha, he served as Chair of the Ethics Committee in the Eighth District Dental Society, on the Board of Trustees of the Willard J. Houghton Foundation of Houghton College and Roberts Wesleyan College, serving multiple roles in his local Wesleyan church, president and secretary of his Rotary Club and a member of the Allegany County Board of Health. Over his 40 year professional career, John also led and participated in over 30 annual medical/dental mission trips to Haiti, a country and people he had deep affection for.

John was devoutly faithful in his Christian beliefs; doing his best to honor God in all that he did. He was a good-natured, gregarious conversationalist who loved his wife and family and enjoyed getting to know others. He was genuinely curious about people he met which enabled him to make a connection with nearly everyone he met. A genuinely good guy, who cared deeply. He loved animals, especially his grand-dogs. He is remembered fondly for his love of life, his constant smile, his good humor, and his adoration for the beloved Eeyore.

Calling hours will be held on Friday, April 3, 2026 from 5-7 PM at the Rector-Hicks Funeral Home, 111 Main St. in Geneseo. Memorial Services will be held on Saturday, April 4, 2026 at 11 AM at Riverstone Wesleyan Church, 300 Genesee St. in Avon with Ben Espinoza officiating.

In lieu of flowers, memorials may be made to the Teresa House, 21 Highland Rd., Geneseo, NY 14454.