Janette Oke 
Roses for Mama (Women of the West Book #3) [EPUB ebook] 

She’s cared for her siblings as best she could . . . but is it enough? Instead of the new life she and her family expected to forge out west, seventeen-year-old Angela is thrust into the role of caring for her three younger siblings after the death of their parents. With the help of her older brother, and trust in God, Angela is determined to raise the children as her mother would have wanted.As the youngsters grow, the questions and challenges intensify. Angela feels trapped and overwhelmed. Surely no man will ever want a woman who comes with three children in tow. Is this the plan God has for her life? Will she ever find a way to balance her own dreams with the promises she made to her mama?