The Blue Veil (1951)

Louise Mason is a young widow who fills her empty life with the task of becoming a children's nurse. As the years pass, and the widow tries to find her own place in life, her young charges, the children of various employers, grow and soon find themselves ready to face the world. When it seems that she will be alone, the nurse finds that her 'children' have ideas of their own in regards to helping their beloved mentor.