Interesting. Family members of Andromeda Nott, Al thought. Nee Black, according to the Prophet. Most of them were already in the room, and just had to be sorted into Notts and not (in-laws). Teddy, for example. That made sense, since Al saw them talking earlier. Sirius Black. And in the history books, there were so many men of Black family, but rarely women, until... The Minister (not current, previous). Ah-ha.
"Your sister became the Minister," he pointed out. Your other sister is the Chief of current Wizengamot, he didn't say. "That would require a great deal of commitment."
Al was slowly growing used to compartmentalizing and separating the people who returned from the people he once knew. Uncle George. Teddy's Grandmother. Gone now. This Andromeda Nott might as well be a new person. Who appreciated the same thing Al also appreciated.
"I'm glad that you like Arithmancy," he said. "My -" he stumbled over the word, just briefly, but the term was still correct, "- sister found it boring, I think. Numbers need a certain type of mind to understand them. Patience too." He smiled. "Sometimes a lot of it, but the reliability that they offer in return is very reassuring."