Question: When was H. B. Marriott Watson's wife born?
Sentence (from "Rosamund Marriott Watson"): Rosamund (Ball) Marriott Watson (6 October 1860 – 29 December 1911) was an English poet, nature writer and critic, who early in her career wrote under the pseudonyms Graham R. Tomson and Rushworth (or R.) Armytage.
Relevant evidence: Yes