Farmer Clark was a slightly pompous man with a short temper who owned Oakham Farm in the village of Farringham and didn't take kindly to people trespassing on his land. Clark showed quite a bit of contempt towards the Farringham School for Boys.
On 11 November 1913, he spotted a scarecrow in one of his fields that seemed to wave at him with its right arm. Under the impression that it was due to a person hiding inside it, he pulled out some straw, but his hand went right through it. He didn't have long to puzzle over this, however, as he was set upon by a horde of scarecrows, which took him to the Family of Blood's invisible spaceship. There he was murdered, and his body inhabited by Father of Mine. (TV Human Nature)