Leche Family IN Louisiana

My grandfather, Melburn Leche, was born in Louisiana in 1913. His father was Daniel Leche, his grandfather Marcelus Leche. My grandfather had five siblings: Alice, Margaret, Clara, Daisy and Julius.
Daniel Leche died when my grandfather was young. My great-grandmother, Mae Pierce Leche, moved with her three younger children, Melburn, Daisy and Julius, to Oklahoma to live with her oldest daughter, Alice Leche.
I'm looking for more information about my Leche heritage. The family name was occasionally spelled incorrectly as Lesche.