So John Hayward has 3 grandchildren called John Hayward etc all living in the same place and also other grandchildren John (children of his daughters) - you can just imagine "This is my grandson John and this is John and this is John .......)
That's nothing in comparison to my John set. A daughter of my 5xGGF John married a distant cousin with the same surname, called John. Guess what they called 1 of their 8 sons? It begins with J. Grandson John also had a maternal uncle John.
Meanwhile, in a neighbouring parish, another 5xGGF, Tom Moon had a family of 10, one son was Tom of course. A daughter of Tom Senior married a man from the same parish called Tom Moon. The 2 younger men were probably "Our Tom" and "Our Maggie's Tom".
The longest run of the same sex was 6 girls in a family of 13 children, 10 girls, 3 boys. 7th child & 1st boy died aged 2. The next 2 babies were girls who survived. Then eldest daughter had an illegitimate son who seems to have been brought up by his grandparents and who may have believed he was theirs.