There's a fellow near me that just did a brake job on a 1948 Frazer (I don't think it's you...) and if I remember correctly, he said he got his shoes at NAPA so Doc is providing good info. You will need a B.F. wheel puller to remove the rear drums and you'll likely need to shock them off (hitting the axle with a B.F.H.). By the way, the B.F. in wheel puller stands for the same thing it does in the B.F.H.
Also, there is the thread under the Kaiser Forum called "Drum Pulling" which has some good info on this so check it out.