Bradshaw's Guides appear in:
Poul Anderson's Time Patrol series, which incorporates Sherlock Holmes;
SM Stirling's Angrezi Raj, which refers to Holmes;
Michael Portillo's Great British Railways TV series.
On his third dvd, Portillo has just reminded us of another prominent literary use of Bradshaw: Dracula uses the Guide to plan the transportation of his coffin! Portillo also informed us of a historical reference to the Guide: during World War II, RAF pilots navigated across Britain by following the railway lines and called this practice "Bradshawing!"
I meant to mention this briefly in the previous post but forgot, then decided that it was important enough to warrant its own post but now, at just after 1.00 AM, I will stop posting and enter the realm of the Lord Morpheus.