Last week I was watching him walk and counting his steps and I got up to 11, so I decided even if I couldn't grab it on video that was still a decent enough amount to say that he is walking. He has walked further than that by now, but his average is typically more like 5 steps in a row and then fall. And he still crawls a lot. I'm guessing it will be a few more weeks before he is a pro, but last week is what I'm calling the official start.
Here are a few videos. As you can see, I didn't grab any long stretches. Ben and I have probably taken 50 videos of him taking 2-3 steps at a time, hoping to grab one of the longer stretches. Apparently Hank just doesn't want to show off.