Elsie's Girlhood (The Elsie Books, Volume 3) by Martha Finley

As Elsie experiences changes from girlhood to womanhood, her family is also undergoing change. With the marriage of her father to a woman Elsie has loved from childhood, Elsie is joined by a brother and sister who adore her. But all the support of her family cannot prepare her for what is ahead--her first love and her first heartbreak. Her relationship with her father forces her to give up on the man she desperately loves. But to her surprise, and the surprise of her father, true love's shadow has been with her since childhood. Join Elsie as she grows into a fine young woman, facing all the challenges--and blessings--that come with womanhood.