Obituaries: Spring 2026

| 1940s |

Robert Edward Prétat '46 Th'48 of Tampa, Fla., died September 6, 2025. At Dartmouth, he earned a BS and then an MS in civil engineering from Thayer and was active in the Navy V-12 program. He served in the U.S. Navy and then worked as an engineer for General Portland Cement Co. for his entire career. He enjoyed his years at Dartmouth and returned for many reunions, the last being his 70th in 2016. Tracking his family history was a challenge he enjoyed for many decades, resulting in the publishing of a book and family trees shared with dozens of family members. He was predeceased by his wife of 51 years, Donna. He is survived by partner Carol, daughter Linda, sister Barbara, and two grandchildren.

| 1950s |

Arthur F. Worden Jr. '51 Th'52 Tu'52 of Fort Pierce, Fla., died September 4, 1925. At Dartmouth, he was involved with Casque & Gauntlet, Theta Delta Chi, and football. He earned his AB in engineering sciences and then a Tuck MBA and a Thayer MS in 1952. That year he also married Ruth, and together they raised five children. He spent his career in architecture consulting for Wilson Klaes Brucker Worden. He was an active alumnus, supporting Dartmouth Society of Engineers and Friends of Football and serving as an admissions volunteer and Alumni Fund class agent. He is predeceased by his wife and survived by five children, including Amy '84, and granddaughter Emily '13.

Walter Patrick Gramm '52 of Lantana, Fla., passed away on March 22, 2025. At Dartmouth, he majored in engineering sciences and was a member of Alpha Delta Phi. He served in the U.S. Army Counter Intelligence Corps for three years, then joined Republic Steel while earning a master's from Northwestern University. He joined the family business, Great Lakes Carbon Corp., serving in management until retirement. An active alumnus, he served on the boards of Thayer, Hood Museum of Art, and Hopkins Center for the Arts. His family endowed the Dorothy and Walter Gramm Professor of Engineering at Thayer in honor of his parents. He is survived by three former wives and four children, including Melise '88.

Charles Joseph Queenan Jr. '52 Th'53 Tu'53 died at home in Pittsburgh, Pa., on December 3, 2025. At Dartmouth, he was member of Beta Theta Pi and played lacrosse. He graduated cum laude with a combined Tuck-Thayer degree in business administration and engineering, then went on to earn his JD at Harvard Law School in 1956. He practiced his entire career at the K&L Gates, one of the country's most noted law firms. He became senior counsel and chairman of the firm's audit committee before retiring. He was also active in business, education, and community organizations, serving on many boards including the Allegheny Conference on Community Development and as chairman of Carnegie Mellon University. In 2014, he received an honorary degree from Saint Vincent College. He was predeceased by his wife of 68 years, JoAnn. He is survived by children Suzanne and Charles III '78 and four grandchildren.

Thomas Tyler '54 Th'56 of Granger, Indiana, died January 8, 2026. He came to Hanover with wife Kaye, and they started a family while he majored in mechanical engineering, ran track, and was active in Casque & Gauntlet, Green Key Society, Psi Upsilon, and ROTC. After graduation, he served in the Army, then joined the family business, Tyler Refrigeration. He moved to lead the international division of Clark Equipment Co., where he was responsible for developing business across Mexico and South America. He also worked with Wheelabrator Frye and Shuttleworth Inc., retiring as president. He was predeceased by Kaye and son Stephen. He is survived by children Jennifer '89 and Terence '75, and granddaughter Kate '00. Carles Raber '60 Th'62 of Clarkson, Mich., died December 5, 2025. At Dartmouth, he captained the swim team, earned his AB and MS in computer engineering, and married Barbara. He started his career with Pratt & Whitney, where he reverse-engineered an old relay-based control system and translated it to computer code. Presenting at an industry event, he was recruited to be one of the early engineers at manufacturing data systems in Ann Arbor, Mich. He subsequently worked for Applicon, Genigraphics, and Ilford. He was predeceased by Barbara and is survived by four children and their families.

| 1960s |

Rhoderick Charles Hawk '62 of Wilmington, N.C., passed away on November 19, 2025. At Dartmouth, he was active in the Dartmouth Outing Club, Dartmouth Society of Engineers, and Winter Carnival Council. He graduated with an AB in engineering sciences and went on to earn an MS in industrial engineering from Stanford University. He enjoyed a distinguished 25-year career with the General Electric Co., and later with a Westinghouse Co., Western Zirconium, in Utah, retiring as engineering and logistics manager in 2005. He was predeceased by his wife, Frances, and is survived by two children, two stepchildren, and two grandchildren.

Fred "Fritz" Offensend '65 Th'66 passed away in Portland, Ore., on October 17, 2025, from complications of advanced Parkinson's and a cerebellar stroke. At Dartmouth, he majored in engineering sciences and was active in Dartmouth Forensic Union/Debate and Dartmouth Society of Engineers. He earned his BE at Thayer and then an MS in industrial engineering and a PhD in engineering economic systems from Stanford University. He then began a distinguished 30-year career—first at SRI International as a decision analysis consultant and later as vice president in financial engineering systems at Bank of America in San Francisco, Calif. He is survived by his wife, Susanne, son Ashley, and two grandchildren.

Edward H. Truex IV '67 Th'68 of Brownsville, Vt., died November 12, 2025. At Dartmouth, he participated in Dartmouth Society of Engineers, Kappa Kappa Kappa, and student workshops. After graduation, he and wife Barbara, who he married in 1967, moved to Maryland, where he helped build General Electric's time-sharing computer system. In 1976, he founded software company Product Systems Inc., serving as CEO and president until retiring in the early 2000s to Brownsville. Survivors include Barbara, son Edward '91 (who works in Thayer's instructional labs), daughter-in-law Samantha (Scollard) '92 Th'93 Tu'95 (a former Thayer board chair), son Richard, grandson Edward VI '22, and brother Richard '70.

Richard Allan Livingston '68 Th'69 died December 6, 2025, in Laguna Woods, Calif. At Dartmouth, he was captain of the fencing team and a member of the Dartmouth Society of Engineers and Tau Epsilon Phi. After earning his AB and BE, he went to Stanford for a master's in nuclear engineering. An internship with the U.S. Atomic Energy Commission (AEC) drew him early on and he spent his career in the D.C. area with the AEC and the U.S. Environmental Protection Agency and received a Ph.D. in geochemistry at the University of Maryland in 1990. He later worked in advanced research at the Federal Highway Administration. Rich retired in 2007 but continued to teach and conduct research at Maryland and Columbia. He was predeceased by siblings Robert '70 and Barbara and is survived by sister Nancy.

| 1970s |

Peter Roitman '71 Th'72 of Gaithersburg, Md., died of throat cancer on October 2, 2025. At Dartmouth, he earned his AB and BE and was active in student workshops and the Tucker Fellowship. He then obtained a PhD in engineering from Princeton in 1977, joining what is now the National Institute of Standards and Technology (NIST) upon graduation. He worked his entire career at NIST, publishing numerous papers and conducting research on topics including radiation effects on microchips, silicon materials and processing, SOI technology, and electron microscopy. In 1992 he and his coauthors received the 1992 NSREC Outstanding Conference Paper Award at the IEEE Nuclear and Space Radiation Effects Conference. He is survived by his wife, Doris, and siblings Judy '78 and Michael '76.

| 1980s |

Richard Patrick Lena Jr. '83 Th'84 of Madison, Conn., died unexpectedly on December 10, 2025. At Dartmouth, he played football, was a brother of Beta Theta Pi, participated in a French language study abroad program, and earned his AB and BE. After graduation, he began an 18-year career at IBM as a system engineer. In 2003, he took an executive position with Tangoe Inc., managing operations in India and Asia and enjoying domestic and international travel. He worked as an IT consultant for Stanley Black & Decker at the time of his death. He is survived by wife, Christine, daughters Jaclyn and Kendra, and siblings Chris '88, Dan '91, and Michael '84.