House Works: Insulating a 1950s Bungalow

Q: What’s the best way to insulate the brick walls of my small bungalow built in 1952? There’s just plaster against the inside layer of brick with no insulation. I’m having insulation blown into the attic and I’m considering doing the same thing with wall cavities.
A: Your plan for attic insulation is great, but the walls pose more of a challenge. I’ve seen a number of small brick bungalows built in Canada in the early 1950s, and none offered enough open air space b