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I believe these are all 100 percent correctly punctuated.

The store manager, John Doe, resigned on Tuesday.
John Doe, the store manager, resigned on Tuesday.
John Doe, Store Manager, resigned on Tuesday.

Store Manager John Doe resigned on Tuesday.
On Tuesday, we heard about the resignation of the store manager, John Doe.
On Tuesday, we heard about the resignation of Store Manager John Doe.
Make sure to inform the zone director, Joe Clark.
Make sure to inform Zone Director Joe Clark.

(I believe that the inclusion of the commas in some examples and the exclusion of commas in others are correct.)

I believe these are correct, too.
The fragrance Eternity for Men sold like hot cakes in the mid-'80s.
(No commas set off 'Eternity for Men' because it's essential info, and if we did, we wouldn't know which fragrance was being referred to. Doing so would make that info parenthetical and unnecessary, agreed?

Thanks once again to all for their continued input, guidance, direction, and tutelage!!!

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As a non-native speaker, I find your sentences correctly punctuated, Victo.

As regards your second set of example, I've seen it used this way also too.

The fragrance 'Eternity for Men' sold like hot cakes in the mid 80s.

Tom
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Hi,

I believe these are all 100 percent correctly punctuated.

The store manager, John Doe, resigned on Tuesday.

John Doe, the store manager, resigned on Tuesday.

John Doe, Store Manager, resigned on Tuesday.

Store Manager John Doe resigned on Tuesday.

On Tuesday, we heard about the resignation of the store manager, John Doe.

On Tuesday, we heard about the resignation of Store Manager John Doe.

Make sure to inform the zone director, Joe Clark.

Make sure to inform Zone Director Joe Clark.

(I believe that the inclusion of the commas in some examples and the exclusion of commas in others are correct.) yes

I believe these are correct, too.

The fragrance Eternity for Men sold like hot cakes in the mid-'80s.Sounds OK.

(No commas set off 'Eternity for Men' because it's essential info, and if we did, we wouldn't know which fragrance was being referred to. Why not? It still sound like we are just talking about one fragrance.

Doing so would make that info parenthetical yes and unnecessary no , agreed?

I wouldn't object to any of these, either.

The fragrance, Eternity for Men, sold like hot cakes in the mid-'80s.

The fragrance 'Eternity for Men' sold like hot cakes in the mid-'80s.

Clive