Letteria was born about 1930 in Messina, the daughter of Francesco Barbera and Annunziata Gemelli.
Her husband was Giuseppe Merlino, who she married in ABT 1952. The place has not been found. Their four known children were Daniele (), Francesco (), Placido () and Orazio ().
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | ABT 1930 |
|