's

[kinfai]

Davy Jones' Locker or Davy Jones's Locker?

Look forward to your opinion. Thanks a lot.

[Heba]

"Davy Jones' Locker" should be the correct one.
If I remember correctly, the rule is, "If the name ends with an ' s ' , there is no need to add the other ' s ' after the apostrophe " ' ".

[kinfai]

I've heard of the "rule" and this "rule" is for some words only.

I wonder if something can be called a rule if it is not universally true.

[Rusty]

I've heard of the "rule" and this "rule" is for some words only.

I wonder if something can be called a rule if it is not universally true.
Davy Jones' Locker or Davy Jones's Locker? According to the rules that I have found, both of these are acceptable.