As long as the spaces on both sides of the wall are heated living space, you don't need to insulate. But it's still worth air-sealing that wall.

Dana1,

yes space on both size is heated. What do you recommend best way to seal the wall if not using foam?

Thanks

Dana1, I found AirTight CC Closed-Cell Spray Foam Insulation ICC ESR-262 by Lapolla. It's 1.98 perm @ 1". Is this an ideal CC foam for me to put up 2" on the brick wall? Thanks, Zygote

That stuff would test out at about 1 perm at 2", which would work in all of your foam applications (even around where structural timbers penetrate the brick.)

A timely & relevant blog article on the subject of insulating solid brick walls: http://www.greenbuildingadvisor.com/blogs/dept/musings/insulating-old-brick-buildings