This Is Why You Avoid Reunions

I should have posted this sooner, since some of you already have your copies of this week's Secret Six, and probably know the answer, but what the hey. Mr. MacQuarrie, the old man that apparently didn't shoot himself in the head earlier in the arc, do you think he's Thomas Blake's father, or his grandfather*?

He treats people horribly (remember his "coat rack"?), has a lousy attitude towards women, and thinks money lets him do whatever he wants. And he has some sort of interest in Catman, specifically. He doesn't have the hunting trophies one might expect of Blake's father, but there are all those planes, which might suggest a different interest. Maybe Blake's grandad fought in the war and preferred shooting down aircraft and people to animals? We only have MacQuarrie's word that was really his grandson they tried to save. Photos can be faked, he could have hired those folks as actors to pose with him. Or they could really be MacQuarrie's descendants, from another woman than Blake (or Blake's father).

Secret Six #21 seemed to suggest Thomas shot someone as a child (I think we're supposed to assume it's his dad, but maybe he shot his mom instead/by accident), but we thought MacQuarrie shot himself in the head, and he's still alive. Even if Blake did shoot his dad, it doesn't mean he killed him. Though I'm really leaning more towards this being Catman's grandfather. He seems too old to be his dad.

* Edit: I mean specifically his paternal grandfather, under the idea a scumbag like Thomas' dad would at least be partially formed by having a scumbag of a father himself. It could be his maternal grandfather, but I don't see that quite fitting with the story up to this point.