What We Know About This Character
* Benjamin McGonagall is a Muggle, and his parents disowned him when they discovered he chose to marry a witch (Professor McGonagall).
* Benjamin worked for the Prime Minister of England, even though his life ambition was to become a doctor, yet he didn't keep up with his studies while in school, so he didn't reach his life long dream.
* He retired when his and Minerva's only daughter Mary was a teenager. He faced all sorts of resentment from his daughter, because his blood was the reason she herself never became a witch, which was what she had wanted so badly.
* Shortly before Leslie was born, Benjamin died of old age, leaving Minerva a widow.