Pear cross pollination
All these pears will cross pollinate. Bartlett is a good pollinator for all pears. Asians can be pollinated by European varieties as well. Most if not all these pears are self-fruitful to some extent, but set a better fruit crop if cross pollinated with any pear variety.
Thank you so much for the information. Hopefully, we will get a good crowd within the next couple of years.
Glad to help.