Conversation so far:
When did Thomas Stearns Eliot begin poetry?
T. S. Eliot began to write poetry when he was fourteen under the influence of Edward Fitzgerald's translation of the Rubaiyat of Omar Khayyam.
What was the response to T.S. Eliot's beginning of poetry?
T. S. Eliot said the results were gloomy and despairing and he destroyed them.
Did T.S. Eliot and Vivienne Haigh-Wood have any children?
T. S. Eliot had no children with either of his wives.
What were some of the symptoms Vivienne Haigh-Wood had?
Vivienne Haigh-Wood had an extensive list of her symptoms, which included a habitually high temperature, fatigue, insomnia, migraines, and colitis.
Where did T.S. Eliot send Vivienne Haigh-Wood?
Vivienne Haigh-Wood was often sent away by T. S. Eliot and her doctors for extended periods of time in the hope of improving her health.
What happened after Vivienne Haigh-Wood's death?
T. S. Eliot confessed: I came to persuade myself that I was in love with Vivienne Haigh-Wood simply because I wanted to burn my boats and stay in England.“
What happened after T.S. Eliot and Vivienne Haigh-Wood shared the flat?
Some scholars have suggested that Vivienne Haigh-Wood and Bertrand Russell had an affair, but the allegations were never confirmed.

Question: How did he know her to be?
Self-contained rewrite: How did T.S. Eliot know Vivienne Haigh-Wood to be?