Around here most of the white I see is live.Here the black was first to go, then they moved on to the white. SE WI where we used to live has virtually no live ash left. Here in the Northwoods the black ash is as all dead but there's still some live white ash yet, but probably not for long...
The good news is, once the older generation of ash are killed off, the next gen will fill in. I've got a dozen or so saplings growing. I had to kill a couple last summer. Misshaped and growing to close to the garage. They were bent and growing at a 70-75* angle. They had to go before they became a future issue. I have one, I think it's a black, with a 4-5'' base growing under some white pines. I observe that one regularly, guarding its safety. May take the 2 closet pines down early summer. Bunch of dead limb threats and the added sunlight will help promote some growth.