I can tell that quite a few people reach this blog looking for public transport information.
Sometimes it's weird and wonderful routes (often repeated) and sometimes, like many people, I think 'How did Google dish that one up?'.
Anyhow, a recurring theme is the Chiltern Railways timetable. Chiltern Railways run from London Marylebone to High Wycombe, Princes Risborough, Aylesbury (and other stations in Buckinghamshire), Birmingham and Stratford-Upon Avon, to name but a few.
Rather than host the document myself, here is a link to Chiltern Railways' timetable page. The full timetable is a pdf at the foot of the page, but there are other options dotted around.