I was fortunate enough to have 2 Family Bibles, one from my Mum and one from my Dad's side of the family.
My Dad's brother Jabez was known as Jim, his brother Jeuel George as George and his brother Harry as Sam (except for his wife who called him Harry. Their son was also Harry but spent the first 18 years of his life as Egon, his middle name).
On my Mum's side, one of her mother's cousins was known as "Aunt Polly Em". Her name was Emily, the Polly bit was because she had a parrot!
My father's mother, Annie Eliza was always known by her friends as Peachy but no one knows the origin of that one!