Bertrand Jaeger's biographical details are not present in the provided text about 1917 literary events.
The provided text details literary events, new publications, and births that occurred in 1917. It lists significant publications across fiction, children's literature, drama, poetry, and non-fiction, including works by established authors and emerging voices. The text also highlights key literary and cultural happenings, such as the founding of publishing houses, the establishment of literary movements, and major awards like the first Pulitzer Prizes. Notable authors whose works or activities are mentioned include J.R.R. Tolkien, W.B. Yeats, Luigi Pirandello, Siegfried Sassoon, and D.H. Lawrence. The section on births introduces a number of writers who would become prominent in later years. However, information specifically pertaining to Bertrand Jaeger is absent from this extract.