1926

June

 * 2 - The cargo ship SS Bernice set sail from Bombay. (DW: Carnival of Monsters)
 * 4 - The crew of the SS Bernice vanished from the Indian Ocean to become an exhibit in Vorg's Miniscope. Due to the intervention of the Third Doctor, the crew were eventually returned to their original time with no memory of having left. (DW: Carnival of Monsters)

Dates Unknown

 * An author of boys' stories for The Ensign magazine vanished from his home in England. He was transported to the Land of Fiction, where he became the Master of the Land. (DW: The Mind Robber)
 * Ann Talbot and Lord Charles Cranleigh married. The Fifth Doctor attended the reception at Cranleigh Hall in Oxfordshire. (MA: The Sands of Time)
 * The Tenth Doctor and Donna Noble met Agatha Christie and investigated a murder case at Eddison Manor. Arnold Golightly revealed himself as a Vespiform and chased Agatha. Donna threw the pendant that connected Agatha's mind to Golightly's into a lake before he could kill her, causing Golightly to drown and Agatha to lose her memories. The Doctor took Agatha ahead ten days to a hotel in Harrogate to put history back on track. (DW: The Unicorn and the Wasp)

Alternative timeline

 * The disappearance of the crew of the SS Bernice became a minor mystery along the lines of the Mary Celeste in succeeding years. However the Doctor changed history in a minor way by returning the crew to their proper place in time and space, negating the vessel's notoriety. (DW: Carnival of Monsters)

Other timelines

 * In John Smith's possible future, Joan Redfern and he had two daughters and a younger son by this year. (NA: Human Nature, DW: The Family of Blood)

January

 * 23 - John Caesar was born.
 * 25 - Richard Davies was born.

March

 * 16 - Victor Maddern was born.

April

 * 1 - John Scott Martin was born.
 * 2 - Robert Holmes was born.
 * 3 - Timothy Bateson was born.
 * 3 - Andrew Keir was born.

May

 * 17 - Tenniel Evans was born.
 * 20 - John Lucarotti was born.
 * 27 - Peter Ling was born.

July

 * 18 - Robert Sloman was born.

October

 * 15 - Geoffrey Colville was born.
 * 18 - Sheila Gill was born.
 * 22 - Tim Condren was born.
 * 23 - Glyn Houston was born.

November

 * 15 - Richard Steele was born.

December

 * 10 - Harry Fowler was born.
 * 14 - Alan Rowe, who played numerous memorable guest roles on Doctor Who, was born in Palmerston North, New Zealand.
 * 14 - Margaret John was born.

Unknown date

 * Andre Maranne was born.
 * Dennis Chinnery was born.
 * Peter R. Newman was born.
 * Derek Pollitt was born.
 * Rex Robinson was born.