John, thanks!
With the alphabetical "convention", I have to wonder if Jim Causley (07-099 and/or 07-100) )would have acquired the additional code(s) already by 1962-1963 or if that happened later and 07-493 may have been assigned to somebody else at that time?
Any idea how early Causley obtained the 07-493 code? And which code(s) applied to the Mack Ave. address and what address for 07-493?
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