Who amongst the following was not a member of the
Bloomsbury Group?

The correct option is W. B. Yeats.

To understand why, let us look at the history of the Bloomsbury Group:
The Bloomsbury Group was an influential association of associated English writers, intellectuals, philosophers, and artists who lived, worked, or studied together near Bloomsbury, London, during the first half of the 20th century. Core members of this group included:
- Virginia Woolf (the famous modernist novelist)
- E. M. Forster (novelist of works like A Passage to India)
- Lytton Strachey (biographer and critic)
- Others such as John Maynard Keynes, Clive Bell, and Vanessa Bell.

W. B. Yeats (William Butler Yeats), on the other hand, was an Irish poet, dramatist, and writer. He was a driving force behind the Irish Literary Revival and was closely associated with the Abbey Theatre in Dublin, not the Bloomsbury Group in London.