Gertrude Divine Webster (born Gertrude Adelaide Divine; June 4, 1872) was an American philanthropist known for co-founding the Desert Botanical Garden in Phoenix, Arizona, and establishing Yester House, her summer estate which is on the National Register of Historic Places and houses the Southern Vermont Arts Center.

[2] On February 2, 1898, she married a lumber tycoon from West Virginia,[1] William McClellan Ritter, at St. Thomas' Church in New York.

[8][9] The resulting painting "Mrs. Richard Low Devine, born Susan Sofia Smith", was displayed in the Columbus Museum of Art multiple times.

[12] From 1919 until 1921, Webster was one of the highest tax payers in Manchester,[13][14][15] and at the time Yester House was showcased in Country Life magazine.

[4][21] The resulting 1934 trial was covered by the New York Times during which Webster noted that Ritter "beat the horses and the dogs" and further objected when she brought ailing children from a Washington, DC, hospital to their summer home in Vermont.

[2][26] The donation was the paneled walls of the parlor of the Reuben Bliss house from Springfield, Massachusetts, which was presented in a 1957 report.

[29][35] The one stipulation was that the society had to retain at least two hundred members in good standing, which Lou Ella Archer made happen in the period following Webster's death.

[29] Upon her death, items from her estate[36][37][38] were auctioned off in New York City,[39] ultimately resulting in a donation for over $114,000 that was given to the Children's Hospital in Columbus, Ohio.

[40][41] George Edmund Lindsay, who served as the executive director of the Desert Botanical Garden, named a succulent after Webster.