Audubon was compelled to dismiss her school and go to nurse them. They both recovered, and, in October (1823), set out for Louisville, making part of the journey on foot. The following winter was passed at Shipping Port, near Louisville, where Audubon painted birds, landscapes, portraits and even signs. In March he left Shipping Port for Philadelphia, leaving his son Victor in the counting house of a Mr. Berthoud. He reached Philadelphia on April 5, and remained there till the following August, studying painting, exhibiting his birds, making many new acquaintances, among them Charles Lucien Bonaparte, giving lessons in drawing at thirty dollars per month, all the time casting wistful eyes toward Europe, whither he hoped soon to be able to go with his drawings. In July he made a pilgrimage to Mill Grove where he had passed so many happy years. The sight of the old familiar scenes filled him with the deepest emotions.