Tina Healy is a transgender woman who didn't come out until about three-and-half years ago, at which point her mother was already beginning to show signs of dementia. Healy has a daughter of her own, who recently wrote a book for kids about being transgender, so the family was featured on The Australian Broadcasting Company, where Healy shared this very sweet anecdote about having to repeatedly explain to her own mom why Tina is now openly her daughter:

Three generations of a family respond to a transgender coming out

"I'm the luckiest one of all because I get to come out to Mum a hundred times a year and every time she's beautiful."Tina came out as #transgender three and a half years ago and inspired her daughter to write a children's book at the same time.See her story: http://www.abc.net.au/7.30/content/2015/s4341049.htm

Posted by 7.30 on Tuesday, October 27, 2015

She says:

My Mum has dementia and quite a few of my family were concerned about what would happen if I came out to Mum, whether she might be too stressed to handle it. And anyway, so when I eventually came out to Mum, I did it early in the morning and she listened. I kept it very simple. And she said - at the end of it, she said, "Well," she said, "What do you know?" She said, "I've got a beautiful new daughter." And she said, "Come here, love." And I cried on her shoulder and Tess cried too and it was all wonderful. ...

I go and see Mum every few weeks and she’s forgotten each time, and every time I tell her again, she gives me just the same beautiful reaction that she did exactly the same, almost word for word every time. I’m kind of the luckiest one of all because I get to come out to Mum 100 times a year, and every time, she’s beautiful.

Sources: 7.30 | ABC 7.30