Too Subtle?

Quick question for you, my kind beta-readers--did anybody pick up that Grandma Billy is transgender? Think I went too subtle there...or we've moved to a glorious world where such things pass without comment, and I am skeptical (if hopeful!) of that last...

ETA: Thank you, guys, for the feedback--obviously whatever I am trying to do is not making the jump to the page at all, and I need to go hammer at it awhile longer. Big thanks for the suggestions, all. This is maybe a hard thing and I am trying to do it correctly--please forgive my flailing so along the way.