Please understand.
When I said the elder Nancy Sinatra that is a way of saying “Nancy Sinatra, the mother of Tina,Frank,Jr. and Nancy Sinatra,Junior.” A mother named Nancy had a daughter named Nancy. Men say junior all the time but women have a harder time differentiating this.
Long after the divorce, Frank often visited his ex-wife Nancy,Sr. and young Tina said to young Nancy,Jr. one night “Who is that laughing and talking with mama?” Nancy,Jr. said “Silly, that’s daddy in bed with mama. He’s still staying here tonight.” (in My Father’s Daughter).
Whether or not this happened with Mia Farrow is controversial but possible. Sinatra was 50, Mia 21 in July, 1966 at their wedding. Divorced 1968. Every writer thinks he can make up ,speculate, or truly back up with facts all the details of Sinatra’s life.
I do not know who Ronan Farrow’s father is and I’m sorry I brought it up! I apologize. I have read about 70 or 80 books on Frank Sinatra and was preparing to write a book about him and still may do it. I have about 30 more books I haven’t read yet on FS.I am retired now so lack the excuses I had before.
I am not on solid ground about Ronan Farrow so please forget I brought it up.
Women "juniors" are pretty common for Hispanics in the U.S. Maybe it will catch on outside that culture.
When they're little girls, you call them "the little one": la pequena Ariselda or la pequena Maybelline, "A'sita" or "Yanita." When they're adults, it's "Edra junior" or "Gilda junior."