This was it and here they are...
1. Just so trying for Joseph K.
Rudyard Kipling and Franz Kafka
2. A golden wardrobe?
3. Only connect Maurice and Margaret.
E.M. Forster and Margaret Forster
4. Rented a tent in Rome.
Kurt Vonnegut and Virgil
5. I heard that Jacques Hughes met a girl in the post office.
6. You need time for him and you need time for him.
Marcel Proust and Anthony Powell
7. Sounds like a small difference between Anne and Elizabeth.
Anne Tyler and Elizabeth Taylor
8. Strange meeting in Catalonia.
Wilfred Owen and George Orwell
9. Take the road to the groves of academe.
Cormac McCarthy and Mary McCarthy
10. A more than human bard?
Theodore Sturgeon and William Shakespeare
11. Washington squared with Dublin for a two-in-one writer.
12. Sammler's memories were enough to turn Agnes grey.
13. The camera's pale view.
Christopher Isherwood and Kazuo Ishiguro
14. Farewell, my sisters.
Raymond Chandler and Anton Chekhov
15. Nymphette at altitude.
Vladimir Nabokov and Pablo Neruda
16. Something happened to create a notable scandal.
17. He only took a second, coming down the road of revolt.
18. A lighthouse to warn ships off the reef.
Virginia Woolf and Edith Wharton
19. Not P.G., but it sounds as if his daughter might have been wounded by a chronological missile.
20. Exit rabbit.
Leon Uris and John Updike
21. Get your flies off my drum!
William Golding and Günter Grass
22. A double monarch in the Metro.
Ellery Queen and Raymond Queneau
23. Call it Zuckerman.
24. He lost his head over Rebecca.
Charles Dickens and Daphne du Maurier
25. All is always now for Dorothea.
Thanks to everyone who sent in an entry. No one had the full set, 50 out of 50, but two people missed only two correct answers each, scoring 48. The book tokens and a round of applause to them accordingly: Sarah Annes Brown and Tom Deveson.