You have the following line in your script:

my $ownersRef = [ $owner1Ref, $owner2Ref ];
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A two-element anonymous array is created, and $ownersRef is a reference to it. To get at the element 0 of this array, the arrow operator can be used to deference the array reference:

print $ownersRef->[0]
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Output:

HASH(0x27ee58)
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Element 0 in the anonymous array is a hash reference (and so is element 1). So, to get "Santa Claus" (sounds like a movie plot, doesn't it???!), another arrow operator can be used for dereferencing the hash reference:

print $ownersRef->[0]->{name};
                   ^      ^
                   |      |
                   |      + hash key for "Santa Claus"
                   |
                   + array element 0
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Output:

Santa Claus
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