Robert C. Armstrong, 88, formerly of Whitesboro and Brantingham, passed away at his home on May 22, 2022. He was born on March 24, 1934, in Westmoreland, a son of the late Albert A. and Helen (Kistner) Armstrong, and graduated from Westmoreland High School. Bob was united in marriage to Sandra Jilson on September 11, 1954, at Lady of the Rosary Church. Bob worked at Hamilton College for many years. Bob was a member of St. Mary’s Church in Glenfield and the Church of Annunciation in Clark Mills and their Holy Name Society. Bob had a passion for flying. He built and piloted his own RC and full-size single engine airplanes. He enjoyed restoring antique airplanes as well. He was a member of the Mohawk Valley Firebirds Radio Control Plane Club and EAA Experimental Aircraft Association. Bob will be missed by his wife Sandra; two daughters and sons-in-law, Colleen and Carl Thomas, and Cathleen and James Mulvihill Jr.; three grandchildren, Christine, David and James (Meilyn); great-granddaughter, Ruby; sister-in-law, Dorothy Armstrong; many nieces, nephews and cousins; and his special friends, Sheila and Craig Horak, and Sheila Sunderhaft. He was predeceased by his parents; his son David Robert Armstrong; two sisters and two brothers, Dorothy Peeling, Kenneth Armstrong, Theodore “Bud” Armstrong, and Janet “Judy” Dzwonkas. All are invited to call Thursday, May 26, 2022, from 4-7pm at Owens-Pavlot & Rogers Funeral Service, 35 College St., Clinton. A Mass of Christian Burial will be celebrated at 10am on Friday, May 27, 2022, at Church of the Annunciation in Clark Mills. He will be laid to rest at Mt. Olivet Cemetery. The family thanks Dr. Lyndacker and Hospice & Palliative Care for their compassionate care. Please consider donations to St. Jude’s.