|A.K.A.||Gladys Thayer Reasoner, Mrs. David Reasoner|
|From||United States of America|
|Birth||1886, South Woodstock, Connecticut, USA|
|Death||1945, Washington, D.C., District of Columbia, USA (aged 59 years)|
|Residence||New Hampshire, USA|
Gladys Thayer (also known as Gladys Thayer Reasoner) (1886–1945) was an American painter and teacher.
Gladys Thayer was born in 1886 in South Woodstock, Connecticut. She was the child of artist Abbott Handerson Thayer. Thayer was a frequent model in her father's paintings, including My Children (Mary, Gerald, and Gladys Thayer) (circa 1897)---alongside her older sister Mary, and her older brother Gerald---and in the "Winged Figure" series (1904–11).
She was married to artist David Reasoner (b.1886 – d.1960). She had four children with Reasoner: Allen (1922–1943), Jean (1923– ), Margaret "Peggy" (1925–2013), Richard (1927– ).
Her father taught her how to paint. She painted flowers and portraiture. She died in 1945 in Washington, D.C..
- "Hooded Warblers, study for book Concealing Coloration in the Animal Kingdom" - ca. 1900 – 1909, watercolor on paper, stencil, and oil on wood, Smithsonian American Art Museum