Too Close to the Falls by Catherine Gildiner

Publisher Description: "At the tender age of four, Cathy accompanies Roy, the deliveryman at her father’s pharmacy, on his routes. She shares some of their memorable deliveries-sleeping pills to Marilyn Monroe (in town filming Niagara), sedatives to Mad Bear, a violent Tuscarora chief, and fungus cream to Warty, the gentle operator of the town dump. As she reaches her teenage years, Cathy’s irrepressible spirit spurs her from dangerous sled rides that take her “too close to the Falls” to tipsy dances with the town priest."