No, I have seen photos of several that have the deeper coffered base with CI coverplates which are far more like Lady S. There was an article about one in Old Glory a while back, half reclaimed by the jungle. Valve chest is on the opposite side of the cylinder as well.
Funny enough I came across that same engine a couple of weeks ago, though I don't know how well it turns over now Would be a nice one to model from scratch.