I'm writing a piece about Maurice Sixto and I want to say that people still keep him in their hearts. Is there a Creole expression for keeping someone in your heart, that has the same connotation, of treasuring someone's memory, of feeling affection and respect for that person who is no longer with us?

Yes, we can say "rete grave nan memwa" literally "to stay etched/impressed in memory"

People still keep him in their hearts
Li rete grave nan memwa yo.
or
Li rete grave nan memwa moun yo.
or even
Non li rete grave nan memwa moun yo.

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