Writers for adults (many can be seen at genarians.com):

1915 Ma Shitu (Chinese politician/novelist)

1916 Geneviève Callerot (French novelist)

1921 Hossein Wahid Khorasani (Iranian religious writer), Ray Lawler (Australian playwright), Edgar Morin (French philosopher)

1922 Bernard Weisberger (American historian), William Leuchtenburg (American historian), Jean Malaurie (French anthropologist/explorer/geographer/physicist)

1923 Edward Lueders (American poet/jazz pianist/U. of Utah professor), Ida Vitale (Uruguayan poet/translator/essayist/critic), Józef Hen (Polish novelist/playwright/screenwriter)

1924 Richard Rohmer, Edward Field

1925 Eugen Gomringer, Madeleine Chapsal

1926 Jürgen Moltmann, Ruth Minsky Sender, Sami Michael, Rene Depestre

1927: Nayantara Sahgal, Carlos Germán Belli, Willis Barnstone

1928: William Kennedy, Desmond Morris, E.D. Hirsch, Tom Lehrer, Cynthia Ozick, Michelle Perrot, Dr. Ruth Westheimer, Patrick Hemingway, Griselda Gambaro, Pavel Kohout, Christopher Davis, Noam Chomsky

1929: Peter Dale Scott, Alasdair MacIntyre, Len Deighton, Antonine Maillet, Harvey Cox, Jurgen Habermas , Arthur Frommer, X.J. Kennedy, Dr. Robert Coles

1930: Adonis, Jennifer Johnston, Norman Podhoretz, Luce Irigaray, Gary Snyder, John Barth, Thomas Sowell, Selma James, Johan Galtung, Kenneth Frampton, Dame Edna O'Brien

1931: John McPhee, John Norman, Alice Munro, Ivan Klima, Adrienne Kennedy, Charles Taylor, Jerome Rothenberg

1932: Robert Coover, Gay Talese, Andrew Young, Elena Poniatowska, Paul R. Ehrlich, Athol Fugard, Tom Robbins, John Searle, Fernando Arrabal, Alix Kates Shulman, Antonia Fraser, Joanne Greenberg, Dr. Bernie S. Siegel, Alvin Plantinga, Jacques Roubaud, Edward Hoagland

1933 Frederick Crews, Nicholas Pileggi, Joan Bakewell, Helen Vendler, Barbara Taylor Bradford, Claire Tomalin, M.T. Vasudevan Nair, Cees Nooteboom, Reiner Kunze, Kerstin Ekman, Michael Frayn, Michael Parenti, Louis Begley, Michael Korda, Leonard Peikoff, Norman Rush, Gordon S. Wood

Children's writers/illustrators, mostly from the "Something About the Author" encyclopedias (I've added Marlene Fanta Shyer to 1932 and Arlene Alda to early 1933):

1920
Arnold Bare (illustrator: 1944 Caldecott Honoree: Lee Kingman's "Pierre Pidgeon")
Barthe DeClements ("Nothing's Fair in Fifth Grade," 1981)

1921
Alice T. Gilbreath (1970s crafts/nature writer)
Patricia Curtis ("Animals You Never Even Heard Of," 1997)
Belinda Hurmence ("A Girl Called Boy," 1982)
Martha Tolles ("Who's Reading Darci's Diary?" 1984)
Joyce Cooper Arkhurst (reteller of "The Adventures of Spider: West African Folk Tales" with Jerry Pinkney, 1964)

1922
Jean Bethell ("The Monkey in the Rocket," 1962)
Joan Heilbroner ("Robert, the Rose Horse," 1962)
Mildred Pitts Walter (1987 Coretta Scott King Medalist: "Justin and the Best Biscuits in the World")
Sonia Gidal (German writer: 1956-1974 "My Village" series)

1923
Pieter van Raven (aka James Edward Duffy, 1990 Scott O'Dell Award winner for "A Time of Troubles")
John K. Tully (British author of "Starpol" series)
Josep Vallverdú (Catalan poet/novelist/playwright & 1988 Hans Christian Andersen Award finalist)
William Wise ("Christopher Mouse: The Tale of a Small Traveler," 2004)
Leone Castell Anderson (novelist: "Sean's War," 1998)
Ruth Gannett (1949 Newbery Honoree: "My Father's Dragon")
Aaron Judah (British author: "God and Mr. Sourpuss," 1960)
Gloria Whelan (National Book Award winner: "Homeless Bird," 2000)

1924
Marian Parry (illustrator: Frederick Winsor's "The Space Child's Mother Goose," 1956)
Toshiko Kanzawa (aka Toshi Furukawa, Japanese author and HCAA finalist: 2000 & 2006)
Roy A. Gallant (science writer)
Tom J. O'Sullivan (illustrator of "Kidnapped," ed. 1954)
Prudence Andrew (British author of 1960s "Ginger" series)
Gene Liberty ("The How and Why Wonder Book of Time")
Leonard Everett Fisher (Pulitzer-winning painter & historical writer & illustrator)
Elliott Gilbert (illustrator of "The Best-Loved Doll" by Rebecca Caudill, 1962)

1925
Frank Graham, Jr. (nature/sports writer & Audubon Society editor)
Linda Allen (British writer: "Mrs. Simkin" series, 1979-1996)
Barbara J. Brenner ("If You Lived in Williamsburg in Colonial Days" 2000)
Laurent de Brunhoff (French writer/illustrator: "Babar's Fair")
Edward Ormondroyd ("David and the Phoenix," 1957)
Wilanne Schneider Belden (1980s fantasy novelist: "Mind-Call" trilogy)
Domenico Volpi (Italian author and HCAA finalist, 1974)

1926
Ina Friedman ("How My Parents Learned to Eat," 1984)
Alain Trez (French cartoonist/illustrator)
Carla Stevens (aka Carla Stevens Bigelow: "Rabbit & Skunk and the Scary Rock," 1976)
Margaret Storey (British fantasy & mystery author: "Timothy & Two Witches," 1966)
Patricia Coombs ("Dorrie" witch series, 1962-1992)
George Ford (Illustrator & 1973 Coretta Scott King Medalist: "Ray Charles" by Sharon B. Mathis)
Alfred Slote (aka A. H. Garnet, baseball and sci-fi novelist)
Darwin McBeth Walton ("Kwanzaa: A World of Holidays," 1998)
Miriam Cohen ("Will I Have a Friend?" 1967)
Muriel Batherman ("Before Columbus," 1981)
Hilary Knight (illustrator: Kay Thompson's "Eloise")
Herma Werner (romance/mystery/adventure writer, aka Eve Cowen & Eve Gladstone, 1978-1994)
Joan Solomon (South African-born British writer: "Everybody's Hair," 1988)
Harriette Abels (sci-fi/romance/mystery novelist)
Marjorie-Ann Watts (British illustrator of Catherine Storr's "Polly and the Wolf" series)

1927
Mary Chalmers (illustrator: "The Secret Language" by Ursula Nordstrom, 1960)
Ruth Lercher Bornstein ("The Summer Everything Changed," 2012)
Robert Andrew Parker (painter/illustrator: "Who Was Albert Einstein?" by Jess Brallier, 2002)
Ancka Gošnik Godec (Slovene illustrator & 2010 HCAA finalist)
Richard B. Lyttle (artist, reporter, biographer)
Niels Jensen (Danish author: "Days of Courage," 1972)
George Sullivan (sports/biographies/nonfiction writer)
Melvin Berger (author of 200 science/nonfiction books)
Mort Künstler (MAD cartoonist, illustrator, & historical painter)
Margot Webb (German-born writer: "Too Young To Die: The Story of José," 2003)
Dorothy Levenson (Australian-born writer: "The Magic Carousel," 1967)
Don Madden (writer/illustrator: "The Wartville Wizard," 1986)
Elizabeth Fitzgerald Howard (2001 Coretta Scott King Honoree: "Virgie Goes to School with Us Boys")

1928
Barbara M. Walker ("The Little House Cookbook," 1979)
Marilyn Gould (Writer on skateboarding and "Golden Daffodils," 1985)
Betty Fraser (Illustrator: Mary Ann Hoberman's "The Llama Who Had No Pajama")
Lore Segal (Austrian-born writer & translator: Grimm's "The Juniper Tree," illustrated by Maurice Sendak)
Mary Lystad ("James the Jaguar," 1972)
Jacqueline Dougan Jackson (writer/poet/illustrator: "Turn Not Pale, Beloved Snail," 1974)
Ellen Viereck (Painter/illustrator, "The Summer I Was Lost" by Paul Viereck, 1965)
V. Gilbert Beers (Baptist writer: "The Early Readers Bible," 1991)
Arnold Dobrin (Writer/illustrator, "Scat!" 1970)
Janice May Udry (1957 Caldecott Medalist: "A Tree is Nice," with Marc Simont)
Virginia Lee (aka Virginia L. Ewbank, Virginia Ewbank Hendricks, and Virginia L Hendricks,"The Magic Moth," 1972)
Nan Holcomb (author of elementary stories about handicapped children; real name, Norma McPhee)
James Lincoln Collier (1975 Newbery Honoree & National Book Award nominee: "My Brother Sam is Dead")
Jane Gardam (UK writer & Carnegie nominee: "The Hollow Land," 1981)
Phyllis Hollander (Co-author: "Amazing But True Sports Stories," 1986)
Eva Hulsmann (French/German/Italian nature illustrator)
Shulamith L. Oppenheim ("The Sea King" with Jane Yolen, 2003)
Esther L. Nelson ("Dancing Games for Children of All Ages," 1973)
Judith Crabtree (Australian fantasy novelist/illustrator: "Song at the Gate," 1987)
Sidney Offit ("The Adventures of Homer Fink," 1966)
Earle Rice Jr. (YA war history writer)
Toby Talbot ("Dear Greta Garbo," 1977)
Alice M. Fleming (nonfiction writer: "Martin Luther King: A Dream of Hope," 2008)
Carolee Wells Henney ("The Cat in the Tower," 2017)

1929
Jules Feiffer (cartoonist: "The Phantom Tollbooth" by Norton Juster, 1961)
Walter Lorraine (editor/illustrator: "McBroom" series by Sid Fleischman, 1960s-1980s)
Arnold Roth (cartoonist: "Grimms' Fairy Tales," 1966)
Ruth Belov Gross ("If You Grew Up With George Washington," 1982)
Hilde Heyduck-Huth (German writer/illustrator: "The Three Birds," 1966)
Edward Sorel (political cartoonist: "The Pirates of Penzance," adapted by Ward Botsford, 1981)
Jacqueline L. Harris ("The Tuskegee Airmen: Black Heroes of World War II," 1996)
Jane Wooster Scott (Illustrator & American folk art painter)
Lensey Namioka (nee Lensey Chao, Chinese-born writer: "Ties That Bind, Ties That Break," 1999)
Christine San Jose (British-born senior editor of "Highlights" magazine)
Norma J. Livo ("Moon Cakes to Maize: Delicious World Folktales," 1999)
Lynne Reid Banks (British author: "The Indian in the Cupboard," 1980)
K.M. Peyton (1969 Carnegie Medalist: "The Edge of the Cloud")
Norman L. Macht (Sports biographer)
Peter F. Neumeyer (German-born writer: "The Annotated Charlotte's Web," 1994)
Wendy Pfeffer ("Let's Read and Find Out" science series)
Sesyle Joslin (1959 Caldecott Honoree: "What Do You Say, Dear?" with Maurice Sendak)
Aliki Brandenberg (aka Aliki, writer/illustrator: "A Medieval Feast," 1983)
Elizabeth Hall ("Thunder Rolling in the Mountains," 1992, with Scott O'Dell)
Dorothy W. Robinson (1975 Coretta Scott King Medalist: "The Legend of Africania")
Marjorie Ann Waybill ("Chinese Eyes," 1974)
Peter R. Limburg (Science writer of "What's Behind the Word" series)
Lael Littke (YA mystery/romance/horror novelist: "Prom Dress," 1989)
Martha E. Rhynes (Biographer: "Ralph Ellison: Author of Invisible Man," 2006)