Donald Bertrand Tresidder (April 7, 1894 – January 28, 1948) was the fourth president of Stanford University, serving from 1943 until his sudden death in 1948. He also had a longstanding association with Yosemite National Park.
Son of John Treloar Tresidder (from Cornwall), Tresidder was born in Tipton, Indiana.
At the age of 20, Tresidder took a trip with his sister to Southern California, but due to washed-out railroad tracks, they ended up visiting Yosemite Valley instead. During his time there, he had the opportunity to meet several faculty members from Stanford University, who convinced him to enroll at the university.
During his visit to Yosemite, Tresidder also met his future wife, Mary Curry, the daughter of David and Jennie Curry, who were the owners of Camp Curry. Tresidder spent his summers working in Yosemite, taking on various jobs such as a porter, among others. However, he was briefly fired for taking his future wife rock climbing on the backside of Half Dome. Tresidder and Mary Curry got married on June 17, 1920.
After graduating from Stanford, Tresidder became the president of Yosemite Park and Curry Company. During his tenure, he oversaw the construction of new roads, the establishment of the Badger Pass Ski Area, and the Ahwahnee Hotel, which was built in 1927 and is now recognized as a National Historic Landmark.
For many years, Tresidder assumed the role of the Squire at the Bracebridge Dinner, a grand Christmas feast held annually on Christmas Day at the Ahwahnee Hotel in Yosemite. His wife, Mary Curry Tresidder, played the role of Lady Bracebridge. In 1929, Tresidder invited photographer Ansel Adams to take over as the director of the Dinner, a responsibility that Adams willingly accepted.
Tresidder later described himself on arrival at Stanford as an undergraduate: "a gangling youth from the Midwest, wearing a jacket with sleeves too short to cover his long arms, shambling nervously up Palm Drive carrying a battered suitcase. But each student he passed waved and spoke to him cheerfully.