Robert A. Tust, 91, of Delray Beach, Florida passed away peacefully on December 9, 2025.

Born on June, 20, 1934 in Allentown, Pennsylvania, Bob was the son of the late Adolph and Alma Tust. He is predeceased by his wife of over fifty years, Bonita Isabel Tust. He is survived by his three sons, Robert and his wife Laurie, Peter, Michael and his wife Becky, as well as seven grandchildren: Tyler, Autumn, Cristina, Ben, Samantha, Jeremy, Nicole, and one great-granddaughter, Bella.

Bob graduated from Muhlenberg College with a Bachelor of Science degree in Mathematics and received his Master's degree in Applied Statistics & Quality Engineering from Rutgers University. He retired after twenty-nine years as Senior Engineer and Project Manager at IBM.

Bob's interests and activities included hunting, fishing, camping, swimming, softball, basketball, coin collecting, church youth activities, boy scouts, and playing in bands. He played in the 243rd Army Band affiliated with Pennsylvania National Guard while attending Muhlenberg College. Bob encouraged and supported his sons throughout their sporting careers including managing and coaching little league baseball, motocross pit crew, and wrestling booster club chairman. As he reached retirement, he was active in the U.S. Coast Guard Auxiliary, Tropic Bay Board of Directors and Church Council.

Bob will be remembered fondly for his love of family, organization, and dependability. His humor, wisdom, and love will forever live on in their hearts, and the hearts of everyone whose life he has touched.