Tambor’s recycledness score (widest age gap between any two consecutive children) is an approximation; I could only find the year his first child, Molly, was born, not the day. But even if I’d worst-cased it (Dec. 31), Tambor would still beat Keillor by 0.36 years (more than 4 months) for recycledness.

As you can see, his recycledness score is the lowest on the list so far, with a widest gap between two consecutive children of only 12.44 years. But his virility score is another story: He was 59.81 years old when his youngest child (so far) was born, so on this list, only Van Morrison trumps him.

Leave a comment or e-mail me if you’d like to nominate a celebrity or yourself to be added to the index.

This isn't Jeff, but he has actually done this job. Say "Thank you," America.

My co-worker Jeff Janszen is literally the only other recycled dad I know personally, so naturally I asked him for his family stats so I could add him to the Recycled Dad Index. He agreed because he is a cool guy and not afraid of anything (see photo caption above).

Now the index has four celebrities and two regular guys. I’ll be adding more famous people shortly. But you, too, ordinary dad, can get on the index. You just have to be a father of at least two children — although getting a high score is another matter.

Your recycledness score represents the biggest age gap (in years) between two consecutive children in your family. If you are a typical recycled dad, this is the gap between the youngest child of your first marriage and the first child of your second marriage. In theory, the wider that gap, the more opportunity there has been for you to get ‘rusty’ on how to raise a child from the beginning. (I admit that ‘recycledness’ is not really the best term for this attribute. ‘Rustiness’ is actually closer to the mark. Any other ideas?)

Your virility score is simply the age you were when your youngest child was born (you stud!).

Jeff is at the bottom of this short list in terms of recycledness, with a ‘generation gap’ between kids of 12.86 years. But at least he outranks me for virility: He was a respectable 44.87 years old when his twin son and daughter were born.

Let’s have some fun with this, dads! If you want to get on the index, just leave a comment or e-mail me.

UPDATE (5/20/2011): Still can’t put script in WordPress.com, but if you click here or click the chart, it will open the interactive version of the chart in Google Spreadsheets.

Still experimenting with different visualization tools, but here is a glimpse of what I’m trying to do:

Click the image to go to the interactive version of this chart

For each celebrity dad on the list (and me), I’ve plugged in the dad’s date of birth and the date of birth of each of his children. I use the data to calculate and display each dad’s recycledness score (the widest gap, in years, between two of his children) and, just for fun, his virility score (the gap, in years, between his age and his youngest child’s age). The recycledness bar is green, of course; the virility bar is the color of a pharmaceutical that may have a connection to some of these statistics.

If I could use javascript here, you’d be able to fly over the bars to see the actual values. FYI, Keillor’s recycledness score is 28.60, and Morrison’s virility score is 64.37.

My vision is to enable regular guys to enter similar data on themselves into a calculator in order to  see how they would rank on this index. (For these two scores, most of us can do the math in our heads — and probably have — but eventually I’d like to introduce more data and other kinds of scores.)

This prototype is in Google Spreadsheets, but I’m also getting familiar with Zoho Creator. Somehow I need to enable new entries via a web form. Ideas welcome and appreciated.

Driving Jacob home from preschool recently, I turned on the Pandora music streaming app on my iPhone and piped the music through my car radio, as I do routinely. Jacob heard a few bars of the rap song that was playing and said, in a panic, “Push the thumb-up button! Push the thumb-up button! I like this one!”

(Thanks to iNintendo.net for the screen shot)

Back in 2004 (I think), I bought a Nintendo 64 game system for $20 at GameStop so I could play it with Charlie and Thomas during their visits. It was the same kind of system they had played on when they were young kids,  so we all experienced some nostalgia as we played again — some of us more than others, I’m sure.

A few months ago, I introduced Jacob (5) to the N64. He is now capable of beating me, and his mom, and his grandparents, and all the computer players, in MarioKart, not always but more often than we would like. Angela saw how much he enjoyed MarioKart, so she ordered two more games, one of which is the classic Super Mario 64. The learning curve of that game is a little steep, but Jacob is picking it up quickly, thanks in part to the vast supply of YouTube videos of people playing the game extremely well.

Jacob shows the same talent and patience for learning these N64 games that Thomas had when he was little — which is saying a lot — and he shows the same kind of excitement in learning the ‘maps’ and how things behave in these alternate universes.

Playing the games with any of my kids brings back memories, but seeing glimpses of the older sons in the youngest one is what really takes me back.

Nothing.

Life goes on, happily!

So I’m trying what I should have tried in the first place: I’m putting an ad on Bay Area craigslist to see if any other recycled dads in in the area want to hang out. Yes, in person.

I’ll post about what happens, even if it’s nothing.

If you are a recycled dad, please download this questionnaire, complete it, and e-mail it to cameronblack19@googlemail.com . I found the questions very thought-provoking; you probably will, too.

Here is the message the researcher sent me via my blog:

My name is Cameron Black. I am a  first year student at Bournemouth University, England and am currently studying Advertising. As part of a consumer psychology unit, we are doing a project on a new market segment that is yet to be explored by a high street retailer i.e old new dads. The main aim of our project is to discover what new products might appeal to men who have become Dads later on in life and what would help them to bond better with their children.

If you have any suggestions or any information regarding a product that you think might be successful it would be much appreciated. I would also be interested to hear about your experience of becoming a older or recycled father and what the positives from that experience.

Today, as I was putting Jacob in his car seat:

Jacob: “Ow!”

Me: “I’m sorry. Did I crush your nuts?”

Jacob (laughing): “No, you didn’t crush my nuts! How did you know I had nuts?”

Angela and me (laughing): “…”

Jacob: “How did you know I had nuts in my belly?”

Angela and me (laughing uncontrollably): “…”