I relied a great deal on his official reports and then there are diaries and letters by one of his expedition members.
There are diary entries about the construction of Grace Church, about memories of ice skating on the canal that is now covered by Canal Street, about crabbing on the East River.
So there's diary stress, but it's incredibly stimulating". After all, he's a guitarist, a producer who has worked with Tinariwen and Lo'Jo, and a serial collaborator who plays with a whole variety of other musicians.
There are diary extracts from his two brothers, poems, notebooks, a heart-breaking line found on the back of a photograph, and details of when the family fled the Gestapo.
There are diary entries about him going to Chequers to visit Churchill and he was completely accepted by royalty and by politicians, people who were the society figures of the day.
Orwell was, whenever the opportunity came up, a smallholding farmer: horse manure he valued as fertiliser (there are diary entries recording him examining minutely the quality of recent droppings).
Certainly there were letters, diaries - miles of them.
The subject was assumed to be home during nighttime hours when there were no diary reports.
There are six diaries in the Diaries Series, kept during parts of the 1950s and 1970s.
Even within some diaries there are such devices.
He brought his horses with him and in his diaries there are notes such as, "I rode around the island" or "I rode twice around the island today".
