Mary Lee Kingman Natti, who published under the name Lee Kingman, was a writer of children's and young adult books usually set in New England, many specifically in Cape Ann, where she lived most of her life.
Someone gave me this book when I was about 10 or 11 because it had my name in the title and was 50 cents at a garage sale (Thanks, Mom!)
This is not a book for 10 year olds. But I loved it! High school theater kid drama, lots of references to plays, Ivy League college applications, teen romance, and cancer (specifically, non-Hodgkins lymphoma.) It's a really random book, in retrospect, but I think I've always remembered it because I've never read anything else like it. If you have a voracious YA reader (or you are one) I recommend checking it out.
Newly orphaned high school senior Elizabeth Cytherea Wilkersen Maybe has a hard time settling in with her relatives at first. But soon she joins the theater club and before she knows it, Betsy is caught up in a while of social activities and has fallen for a boy - who already has a girlfriend.
Recently orphaned teen, & currently residing with family but having difficult time adapting then tossed into a whirl of social activities then falling someone that already has a girlfriend, what's a teen to do... Another one I haven't read years but my daughter thought it humorous...