So, you're wondering, "Hey, how old was David Letterman when he had his son?" Well, grab a coffee, let's chat about it.

First off, let's set the stage. David Letterman, the legendary talk show host, was born on April 12, 1947. That makes him a Baby Boomer, born right in the thick of that generation.

Now, fast forward to 1982. Letterman was hosting Late Night with David Letterman on NBC. He was 35 years old, just hitting his stride in the world of late-night TV. That's when he tied the knot with his first wife, Michelle Cook.

But here's where the timeline gets a little tricky. See, Letterman and Cook divorced in 1977, just five years before they welcomed their son, Harry Joseph Letterman, into the world on November 3, 1987.

How David Letterman’s Son Harry Joseph Letterman Survived KidnappingHow David Letterman’s Son Harry Joseph Letterman Survived Kidnapping

So, you might be scratching your head, thinking, "Wait a minute, wasn't Letterman married to his second wife, Regina Lasko, when Harry was born?" Well, you're right! Letterman and Lasko started dating in 1986, and they were together when Harry was born. They didn't officially tie the knot until 2009, though. Talk about a long engagement, huh?

Now, back to the main question. How old was Letterman when Harry was born? Let's do the math. Letterman was 40 years old when his son was born in 1987. Can you believe it? The guy was already a TV veteran by the time he became a dad!

All About David Letterman’s Son Harry LettermanAll About David Letterman’s Son Harry Letterman

And here's a fun fact for you. Harry was born just a few months before Letterman started his iconic run on The Late Show with David Letterman on CBS. Talk about a busy year for the guy!

So there you have it. David Letterman was 40 years old when he had his son, Harry. Now, if you'll excuse me, I need to go find out what other celebrities were up to in 1987. It was a big year, you know?