Spring Dream by Rosamund Hunt

Carolyn Chandler is an attractive young woman (auburn hair, creamy skin, green eyes) who lives in Manhattan with her widowed mother, Vivian. Vivian’s life is a round of parties and it has been up to Carolyn to manage their home and finances since she was 16. Now, although Vivian is reluctant to leave her social life and Carolyn does not want to leave handsome Whit Dryden, her new beau, they travel 200 miles north when they get the news that Vivian’s sister, Blanche Storrow, had been hospitalized.