Sorry, for going backwards a little here..Its a little confusing but the Keehn's who purchased McDowell Valley vineyards in 1970 had a son named William. And since the late 80's a William Crawford is the Winemaker/ Grower/Owner. I'm assuming he is their son?.He pulled the old 1919 vineyard in 1984 and propagated a new block using wood, clonal selection sourced from that vineyard..Sounds like he is working hard with UC Davis on matching Grade A Syrah clones with specific sites, pruning, trellising etc..It's all on their website..The vineyard has a long interesting history of California Syrah..They seem to have a strong minerality "Niche"in their wines from their soil..