Here is one for pop culture and sports: Babe Ruth (1895-1995)
Walt disney(1901-2001): walt disney living this long.. Maybe this would have interesting butterflies on Animation industry.
John Ford(1894-1994)
Kurosawa Akira(1910-2010)
H.P. Lovecraft (1890-1990): this would change the cthulhu mythos as whole.
Robert E. howard (1906-2006): Conan the babarian the franchise might have gone the other direction.
Longer living Disney would have indeed big impact altough probalby you should change his life habits more healthier.
Not sure about Kurosawa. He made his most famous works already in 1950's and 1960's. He didn't make much anymore in 1990's so I dobut that this would change much.
Even if if Howard wouldn't live at age of 100 longer living Howard would be very intresting. There would be even more development with Conan world. Just wondering what he would say about Conan the Barbarian movie if lives so long and such movie is ever made.
And on science Marie Curie living 100 years (very hard when she worked with radiactive materials without any protection) would be intresting. At least we would see her reactions to atomic bombs.