Lindley - while Mil likes people who speak their minds IDK if she'd know her well.
Prim - I love her. I think Mil would be friendly if they did met. I think in someways Mil can see the person she might have easily been? IDK makes sense in my head
Ginny - Oh Mil is amused by her. Likes the do your own thing and would certainly know OF her. Might be amused by her antics?
Lottie - Might know her/recognise her through the Ministry?
Briana - Millicent is a BIG reader and always has been. Always looking for new books, fiction & non-fiction to get her hands on so she possibly would be a frequent customer at her store. I also imagine she's a big tea drinker.