Raised speaking Spanish? I'm not so sure

An obituary for singer Eydie Gorme has been posted on our synagogue bulletin board for weeks, and I keep being bothered by one detail--why does this obituary and others say that Edith Garmezano's parents spoke Spanish and English at home?  If her Sefardic father was from Sicily and her Sefardic mother from Turkey, how likely is it that either one grew up speaking Spanish?  Isn't it more likely that young Edith grew up speaking Ladino, and learned Spanish in school?