Editing Robert McNamara (section)

=== Final years and death ===
After his wife's death, McNamara dated [[Katharine Graham]], with whom he had been friends since the early 1960s.{{Citation needed|date=January 2018}} Graham died in 2001.

In September 2004, McNamara wed Diana Masieri Byfield, an Italian-born widow who had lived in the United States for more than 40 years. It was her second marriage. She was married to [[Ernest Byfield]], a former [[Office of Strategic Services|OSS]] officer and Chicago hotel owner, thirty years her senior, whose first wife, Gladys Rosenthal Tartiere, leased her 400-acre (1.6&nbsp;km<sup>2</sup>) Glen Ora estate in [[Middleburg, Virginia]], to John F. Kennedy during his presidency.{{sfn|Roberts|2004}}<ref>{{cite news|url=https://news.google.com/archivesearch?q=ernest+Byfield+gladys+tartiere+kennedy&btnG=Search+Archives&hl=en&ned=us&scoring=a|date=1993-05-03|title=Obituaries; Gladys R. Tartiere, Philanthropist, Dies|access-date=October 27, 2015|archive-date=February 15, 2023|archive-url=https://web.archive.org/web/20230215095214/https://news.google.com/home?as_drrb=a&hl=en-US&gl=US&ceid=US:en|url-status=dead}}</ref>

At the end of his life, McNamara was a life trustee on the Board of Trustees of the [[California Institute of Technology]] (CalTech), a trustee of the Economists for Peace and Security, a trustee of the [[American University of Nigeria]], and an honorary trustee for the [[Brookings Institution]].

McNamara died at his home in Washington, D.C., at 5:30&nbsp;am on July 6, 2009, at the age of 93.{{sfn|Page|2009}}{{sfn|Weiner|2009}} He is buried at the [[Arlington National Cemetery]] in [[Arlington County, Virginia]], with the grave marker also commemorating his wives.<ref>{{cite web|url=https://ancexplorer.army.mil/publicwmv/#/arlington-national/search/results/1/CghtY25hbWFyYRIGcm9iZXJ0/|website=ANC Explorer|accessdate=September 18, 2021|title=McNamara, Robert Strange|archive-date=October 16, 2020|archive-url=https://web.archive.org/web/20201016165543/https://ancexplorer.army.mil/publicwmv/#/arlington-national/search/results/1/CghtY25hbWFyYRIGcm9iZXJ0/|url-status=live}}</ref>

McNamara's papers from his years as Secretary of Defense are housed in the [[John F. Kennedy Presidential Library and Museum]] in [[Boston, Massachusetts]].