Meaning of いかんしょ in following sentence

Question

In a book called 鉄道員 （ポッポヤ） I read following sentence:

俺ァ、ポッポヤだから、身うちのことでなくわけいかんしょ。

(This sentence is really only one sentence, it's his thought on something.) Notes: This ポッポヤ is an old man living somewhere in Hokkaido.

Now, I never heard of いかん before, fortunately there was already a question asked for this here. But what does the additional しょ　mean?

Answer 1

俺ァ、ポッポヤだから、身うちのことでなくわけいかんしょ。

is a collapsed/colloquial way of saying:

俺は、ポッポ屋だから、[身内]{みうち}の[事]{こと}で[泣]{な}く[訳]{わけ}に(は)いかないでしょう。

The いかん is 行かん(=行かない), and the いかん in the linked question is [如何]{いかん}.

~わけに(は)いかない means "can't~", "not supposed to~" or "not allowed to~".

The しょ at the end is Hokkaido dialect for でしょう (See naruto's comment).