Where is Walter Jeffries?

Are Walter and his family OK? I have really been enjoying his Sugar Mountain Farm blog since I discovered it a few months ago (through permies) and I am reading through his old posts. But I can't help noticing that he hasn't posted anything since September last year. Not on his blog, not on his Facebook, and not here either (so far as I can tell). That's over 4 months without a peep.

I've read so many of his blog posts that I almost feel like I know the family, and I'm a bit worried. Any news, anyone? Have others noticed Walter's absence?

Good catch.
I've noticed people missing before,  usually they just get busy.
Walter had,  last I checked,had gotten his operation certified, so hopefully he is preoccupied with great success.