I'm going to have to come back to this later and in detail - but thanks so much for all this research - and it's set a few ideas in train of my own (for example, what about the House affiliations/blood status of other characters? Can we assume that, post Voldemort's activities, most remaining Ministry officials are, at least 'one generation' pureblood? Mafalda Hopkirk? Umbridge? Fudge? - thoiugh by no means all Slytherins.
I have always assumed that Lockhart was an ex-Slytherin (if only because of his duplicity "There's not a single witch or wizard who went bad who wasn't in Slytherin.")
And re A scion of the Slytherin pureblood filthy-wealthy elite finds it plausible (in 1992) to assert that he’s the put-upon victim of unfair grading at Hogwarts? That Dumbledore’s teachers would unjustly grade a Muggle-born Gryffindor higher than a rich pureblood Slytherin?
Well, maybe that is why Lucius was able to convince the Governors that Dumbledore wasn't the best person to be in charge of Hogwarts?
I have always assumed that Lockhart was an ex-Slytherin (if only because of his duplicity "There's not a single witch or wizard who went bad who wasn't in Slytherin.")
And re A scion of the Slytherin pureblood filthy-wealthy elite finds it plausible (in 1992) to assert that he’s the put-upon victim of unfair grading at Hogwarts? That Dumbledore’s teachers would unjustly grade a Muggle-born Gryffindor higher than a rich pureblood Slytherin?
Well, maybe that is why Lucius was able to convince the Governors that Dumbledore wasn't the best person to be in charge of Hogwarts?