Turtle in Paradise by Jennifer L. Holm

Turtle's mom is a housemaid and where she works right now, the owner doesn't like kids. That means that Turtle is going to live at her aunt's house in Key West! There she meets her cousins. Right now I'm going to cut to the good (?) part. Turtle and her cousins have found real treasure! All too soon Turtle's mama get married but her "husband" leaves her and Turtle behind! The names in this book are strange, but it's 1935! -Katherine