I'm not really a fan of
Presley. If it's intended to honour
Preston, I would much rather just use
Preston.
I'd use
Presley as a middle name and
Preston as a first or middle.
To me,
Presley does not fit in a sibset with
Andrew,
Thomas and
Olivia. They are all more common/popular and classic-type names, whereas
Presley is not and stands out as odd.
Presley James GraemePresley Christopher JohnPresley Oscar Liam Presley Griffin Charles
Adam Presley GraemeAdam Presley Charles