Mr. Lucas

Me - "Trevor Bannister died."
Mom - "Who?"
Me -  "Trevor Bannister, 'Mr. Lucas.'"
Mom - "Oh! I didn't recognize the name straight away."
Me - "Is he the last to go? No, isn't Capt. Peacock still alive?"
Mom -  "I don't know. But Mollie Sugden died and I know John Inman did as well."
Me - "You're right. Ages ago, right?"
Mom - "Recently, I think. Last few years for both, I'm almost positive."
Me - "Really? It seems like it wasn't that recent."

Ten seconds of Google skill work.

Me - "You're right. This says Inman died in 2007 and Sugden in 2009."
Mom: - "That's what I thought. And Miss Brahms died a couple of years back."
Me - "Who was I thinking of that died a while ago, then?"
Ella (age 6 1/2) - "Abraham Lincoln."