I decided to go and check on my singing fairy. She was exhausted.
I found her at the Skylight Studio where she'd been delivering a celebration sing-a-gram to Moira for gaining a level in athletic skill.
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Moira is the Sim who had just had twin boys when I got her to quit the investigator career.
Moira is almost an elder now and I thought she needed a family. I gave her instant babies using Master Controller. The donor was a young version of Ted Fields.
When I found him in one of my new households I changed his name to Alf Fields, and when I imported Ted and the rest of my Sims from Sunset Valley I made them brothers.
I did a similar thing with Moira early on in the game. She was originally a younger version of Marcie who was the nanny for the Harmon family. When I put them into the game in Sunset Valley I changed her name to Moira Hayes.
I then made six ghosts to provide Moira and Marcie with parents and grand parents.
After joining up all the various family relationships, Moira and Marcie became first cousins in the game.
Marcie is the second wife of Marty Hansen who was the first husband of my founding Sim, Patience.
To see how it all fits together you need to see their complicated family trees in my other thread mentioned in my OP here.
Marty and Marcie are the parents of five children. Marty has five older children with his first wife, Patience.