Pronoun immediately following its antecedent

Solution 1:

Huddleston and Pullum (authors of ‘The Cambridge Grammar of the English Language’) call it ‘dislocation’, of which they distinguish two types, ‘left dislocation’, where the Noun Phrase is postioned to the left of the clause nucleus, and ‘right dislocation’, which describes the opposite. As an example of left dislocation, they give ‘One of my cousins, she has triplets.’ This construction seems to match exactly the OP’s examples.

Huddleston and Pullum further comment, ‘Dislocated constructions can be easier to understand than their basic counterpart.’

Solution 2:

This is topic fronting followed by a resumptive pronoun.

The pronoun does not always immediately follow its antecedent:

• President Obama, we heard him give a speech last night.

Whether it is valid grammar or not is an open question. It is not unusual to hear this type of construction in verbal communication. But it isn't often seen in writing. Then again, even when written, it's perfectly understandable.