The master cylinder is a Wagner 2796 or EIS2796. The repair kit is Wagner 11300, United 137, NAPA 137 Master.
Note, if you use a kit, the new "plunger" that has the adjuster on it may be a different length so use the original otherwise your brake pedal may not return after you push it down.
The brake shoes are all #51
Other notes, the front wheel cylinders are 1" and the rear are 13/16" so don't get them mixed up.
Front cylinder is a NAPA 9004, repair kit is NAPA 106 or Wagner 5381
Rear wheel cylinder is Wagner 10028, kit is Wagner 12009 or NAPA 610.
The Henry J has cast iron cylinders with aluminum pistons so if the car is not driven regularly, they do sieze up and may have to be driven out with a punch. Filling the master cylinder can be a little tricky too. I always remove the driver side front wheel and reach in behind the frame and remove the cover - fill with a syringe. I then put a very light coat of wheel bearing grease in the threads of the cover and put it back on finger-tight only. This makes it very easy to remove to refill which I have to do every spring. You can also get a remote filler which is a big help.
Front brake hoses (and these are always bad as they shrivel and shrink shut over time, try blowing through one or pushing a thin piece of wire or ice pick through it, I can just about garauntee they're bad) are NAPA 105-1049 or Wagner FC-10491
Rear hose is United 655 or NAPA 36091