John’s diaries demonstrate a keen mind. During harvest season, he begins each entry meticulously noting wind direction and its effect on ploughing and the spread of manure. John takes pride in his careful approach to farming, often comparing, for example, the time it takes to sow grain on a yearly basis. When John is not farming, he enjoys singing at Mr. Duff’s house, although he complains about a persistent sore throat in his later years.