Hmm I prefer
Kinga. Kanga is a fun sound to be sure, but
Kinga is even FUNNER.
I think you are right about Lady Tryon being obscure, I had no clue who she was (I'm north american too)
I like Kangaroos and it freaks me out that they are considered pests and people shoot them and eat them. They are like a mix of stray dog and roadkill and giraffes (because to me they are exotic) or something.
But! some combos:
Kanga
LucilleKanga
BethKanga
Poppy (sounds like a type of opiate...)
Kanga
LouiseKanga
BabsKanga
FrancineKanga
LenoreKanga
DaphneKanga
DulcieKanga
Faye
But seriously, consider
Kinga - I know a few (It's Polish I think) and that name is so badass.