Lewis Carroll collection given to his Oxford college in surprise US donation

Exclusive: Christ Church college taken aback to receive hundreds of the author's letters, photos and rare items

Thousands of letters, photographs, illustrations and books from one of the world's largest private Lewis Carroll collections have been donated to the UK out of the blue by an American philanthropist.

The extraordinary gift has been made to Christ Church, University of Oxford, where Carroll lectured and where he met Alice Liddell, the inspiration for Alice's Adventures in Wonderland, which celebrates its 160th anniversary this year.