John Alfred Penton (August 19, 1925 – September 7, 2025) was an American professional motorcycle racer and businessman who developed a brand of enduro motorcycles that bore his name. He was born and died in Amherst, Ohio, USA. He was a national enduro champion.

He was the oldest living professional motorcycle racer.
Now I don't know who this person is.

https://131offroad.com/2025/09/07/john-penton-1925-2025/

Aza Alibekovna Takho-Godi (October 26, 1922 – September 8, 2025) was a Soviet and Russian philologist, born on October 26, 1922 in Makhachkala, Dagestan Autonomous Soviet Socialist Republic, and was the oldest notable living philologist.

Her successor is Margarita Ana María Frenk y Freund (born August 21, 1925), born in Hamburg, Germany, currently living in Mexico.

https://www.fontanka.ru/2025/09/08/76020297/

Doyle Merwin Coad (September 28, 1924 – September 5, 2025) in Mitchell County, Kansas, served as a member of the United States House of Representatives from 1957 to 1963 representing the state of Iowa. He was the oldest living minister, the last living former U.S. Representative to have served in the 1950s, and the last living former U.S. Representative to have served during the presidency of Dwight D. Eisenhower.

https://www.legacy.com/us/obituaries/name/doyl-coad-obituary?id=59429210

Sir Peter Bernhard Hirsch (January 16, 1925 – September 12, 2025) was born in Berlin.
He was the oldest living notable metallurgist, and made fundamental contributions to the application of transmission electron microscopy to metals.
He was one of hundreds of Jewish children who escaped Germany through the various Kindertransport missions.

https://www.seh.ox.ac.uk/news/hall-remembers-sir-peter-hirsch-frs

Leo Pearlstein (October 5, 1920 – September 10, 2025) was an American businessman, founder and president of Lee & Associates, Inc., a public relations and advertising firm he opened in 1950. He wrote four books: Celebrity Stew, Recipes of the Stars, Mrs. Cubbison's Best Stuffing Cookbook, and Adventures in PR. With that, he was the oldest living notable author.

Now that person is the Iranian from Nishapur, Hossein Wahid Khorasani, born on January 1, 1921.

https://calseafood.net/2025/09/11/cfsi-mourns-the-passing-of-leo-pearlstein/

Georg Stefan Troller (December 10, 1921 – September 27, 2025) was an Austrian journalist, writer, director, and screenwriter, born in Vienna and died in Paris.
In addition to all the professions above, he was also an actor, as he appeared in some films. He was the oldest living interviewer (I haven't found his successor), actor, and screenwriter.
The oldest living actor now is the musician Ray Anthony, born on January 20, 1922, in Bentleyville, Pennsylvania.
And the oldest notable living screenwriter who succeeded him was Ralph Abbott Senensky, born on May 1, 1923, in Mason City, Iowa, but he has also died since then, as I will discuss later.

https://www.welt.de/kultur/literarischewelt/article68d79ff53204c86ca0ddacae/kolumnist-literarische-welt-journalistenlegende-georg-stefan-troller-gestorben.html

Anne Baker was known here on the forum, born in London on May 14, 1914, died on September 23, 2025 in Salisbury, Wiltshire, she was a writer and fundraiser and in both she was the oldest notable living, I only found the successor as the oldest notable living writer, the Swiss Hélène Guisan-Démétriadès born on November 16, 1916 in Isambul, she lived in Lausanne in 2019
She is also the author of La Tierce présence, a work that received the Ève Delacroix Prize from the French Academy in 1995

Karl Ernst Tielebier-Langenscheidt was born in Berlin on July 27, 1921, and died in Munich on September 30, 2025. He was the oldest living publisher and the great-grandson of the founder of the Langenscheidt publishing house. In early 2013, the publishing house was sold to Günther Holding GmbH.

I have not found his successor as the oldest living publisher.

https://trauer.sueddeutsche.de/traueranzeige/karl-ernst-tielebier-langenscheidt

Yang Chen-Ning (October 1, 1922 – October 18, 2025) was born in Hefei, Anhui and died in Beijing.
He has already been mentioned here as well, he was the oldest living Nobel Prize winner (Physics 1957).
Now the oldest living Nobel Prize winner is Rudolph Arthur Marcus (born July 21, 1923) born in Montreal, Canada. He won the Nobel Prize in Chemistry in 1992.

He won the Nobel Prize along with Tsung-Dao Lee, and they were the first Chinese to win the award.

https://apnews.com/article/china-nobel-laureate-physicist-chen-ning-yang-fb5709847c4dbe01e967e5eb1df28c18

Günter Twiesselmann (August 15, 1925 – September 24, 2025) was born in Hanover.
He was the oldest notable rower, having competed in the men's coxed four at the 1952 Summer Olympics.
Now the oldest notable rower is the Briton Tony Pursell, born on July 5, 1926, who participated in the 1948 Olympics.

https://www.drc1884.de/wir-trauern-um-guenter-peter-twiesselmann/

Marjorie Eleanora Johnson was born on August 9, 1919, and died on October 30, 2025. She was the oldest living notable baker, born in Hennepin County, Minnesota, and lived in Robbinsdale, Minnesota. Johnson won over 2,500 ribbons at fairs, including over 1,000 blue ribbons and numerous contest ribbons.
She had dwarfism, measuring 142.24 cm.
I haven't located her successor as the oldest living notable baker yet.

https://www.kaaltv.com/news/marjorie-johnson-minnesotas-blue-ribbon-baker-dies/

Gladys Stone Wright (March 8, 1925 – October 29, 2025) was born in Wasco, Oregon and lived in West Lafayette, Indiana.
She was an American bandmaster. She was one of the first women to hold that position in the United States. Wright was also a composer, writer, music judge, and lecturer, having received numerous awards for her work.
She was the oldest living notable bandmaster.
I have not found her successor.

https://www.purdue.edu/bands/remembering-gladys-stone-wright/?fbclid=IwdGRleANw4A1leHRuA2FlbQExAAEe1WWBnXJ3OVcmTvzyrSV_TnowUtMDh2p5ITbw070ikhV9g301HkPD4FG9HAk_aem_aLXvxu5UF-8-6-W3_vn0NA

Leo Leandros (August 23, 1923 – October 31, 2025) was born in Astakos, Aetolia-Acarnania and died in Pefki, Euboea. He was a Greek musician, composer, singer, songwriter, lyricist, and music producer.

He was the oldest living notable music producer, and co-composed (along with Klaus Munro) "Après toi," winner of the 1972 Eurovision Song Contest, which Vicky performed representing Luxembourg.
I have not found his successor as the oldest living music producer.

https://www.ieidiseis.gr/showbiz/616211/pethane-se-ilikia-102-eton-o-pateras-tis-viky-leandros-kai-toy-apres-toi/

Ralph Abbott Senensky (May 1, 1923 – November 1, 2025) was an American television director and screenwriter.

He was born in Mason City, Iowa, USA, and died in Carmel-by-the-Sea, California, USA.

He directed numerous episodes for dozens of television shows, as well as made-for-TV movies from 1958 to 1988, including The Fugitive, Naked City, Route 66, Mission: Impossible, Dynasty, The Paper Chase, The Big Valley, The Wild Wild West, Eight Is Enough, The Rookies, Trapper John, MD, Dr. Kildare, Breaking Point, 12 O'Clock High, The FBI, The Courtship of Eddie's Father, Dan August, Nanny and the Professor, Barnaby Jones, Insight, Hart to Hart, Death Cruise, The New Adventures of Heidi, the original Star Trek series, The Twilight Zone, Ironside, The Partridge Family, and The Waltons. He also directed most of the feature film Harper Valley PTA. On Breaking Point, he directed an episode that featured one of the first gay storylines on a TV series. He directed six full episodes of Star Trek and was fired during the filming of “The Tholian Web.” Among the episodes of The Waltons, he also directed other episodes. Senensky directed “Grandma Comes Home,” which earned an Emmy nomination for Ellen Corby.

He was the oldest living television director and screenwriter

I could not find the oldest living notable television director

I believe the screenwriter is Józef Hen, a Pole from Warsaw, born on November 8, 1923

https://www.hollywoodreporter.com/tv/tv-news/ralph-senensky-dead-star-trek-waltons-dynasty-1236415780/

Paul Robert Ignatius (November 11, 1920 – November 6, 2025) was an American government official and businessman who served as the 59th Secretary of the Navy from 1967 to 1969 during the administration of Lyndon B. Johnson. Previously, he had been Assistant Secretary of the Army in 1964.
He was the oldest living notable government official
He was born in Glendale, California, and died in Washington
Now the oldest living government official is María Isabel Rodríguez, born in San Salvador, El Salvador. In 2009, she was appointed Minister of Health of El Salvador, a position she held until 2014.

https://www.nytimes.com/2025/11/06/us/politics/paul-ignatius-dead.html