Mary Gore
From Tardis Wiki, the free Doctor Who reference
Mary Gore was the daughter of James Gore, wife of Gordon Conall Lethbridge-Stewart, and mother of James and Alistair Gordon Lethbridge-Stewart.
She married Gordon in the early 1920s and moved to the Cornish village of Bledoe shortly after. They had two sons. The first, born in 1925, was named after her father, and the second, born in 1929, was named after her husband's father. (PROSE: The Forgotten Son)