What confusion arises about turtles real name from the westing game?

The Westing Game by Ellen Raskin revolves around the death of millionaire Samuel W. Westing and the subsequent hunt for his unknown heir among the residents of Sunset Towers, a residential complex. The main character is Turtle Wexler, a curious and intelligent teenager, but nowhere is her name indicated to be fake or mistaken. Therefore, there is no confusion or twist about Turtle's real name in the context of The Westing Game.