Complex sentence: The museum was the idea of Anthony Vaccaro, a Plaattsburgh physician, who owned and restored a 1915 Lozier, who and a museum dedicated to Lozier Motors as a way of promoting Plattsburgh's rich history.
Split into simpler sentences: The museum was the idea of Anthony Vaccaro, a Plattsburgh physician, who owned and restored a 1915 Lozier. He saw a museum dedicated to Lozier Motors as a way of promoting Plattsburgh's rich history.