Blight Resistant Hazelnuts That Are Easy to Shell

Hi everyone,
I am trying to get hazelnuts to grow, and have had zero luck. I am zone 6, Pennsylvania, USA. I am blessed with a lot of land with different soil, shade, and moisture profiles, so I have flexibility with where I plant. Soil and climate are not my problem.  

My problem is filbert blight/cankers, and impossible to shell nuts. I buy American to avoid the blight, but many of them die of blight cankers anyway. The ones that survive produce nothing, or produce tiny little hard-as-diamond shells with a "nut" the size of a grain of rice hiding inside.

My goal is twofold.
1. Must be blight resistant, native to North America.
2. Must be able to shell them without using a jackhammer, and have enough of a nut inside to be worth shelling.

What varieties are you planting, harvesting, and happy with? Is there a source you can recommend?

We will soon be planting some hazelnuts, and I'll be looking at filbert blight resistant cultivars from the Oregon State University breeding program. Burnt Ridge Nursery and Orchards sells some of them. Not sure if this is what you mean by native, since cultivated hazelnuts like OSU's are bred from European Corylus species.

I am also from pa " Columbia county". I have hazlenuts planted, but have yet to have any produce. I bought mine from burnt ridge nursery online. They have been in the ground only a couple of years, but none have died due to blight. When the conservation districts start doing plant sales again in the spring these can be great places to pick native plants up including hazelnuts.