While at Cincinnati Audubon was obliged to resort to his crayon portraits; and he also started a drawing school, but it required all of Mrs. Audubon's skill in management to keep the family out of debt. In 1820 he began for the first time seriously to consider the possibility of publishing his drawings, and under the spur of this incentive began to exert himself as never before. He planned a long journey through the Middle West and South, his intention being to descend the Ohio and Mississippi Rivers, explore the country about New Orleans, and then proceed as far east as the Florida Keys; he wished also to ascend the Red River, cross Arkansas, and visit the Hot Springs, before returning again by river to Cincinnati. Lack of ready money was no drawback, for he was now confident of being able to live by his talents alone. Accordingly, he left his wife to care for their two boys, and on October 12, 1820, started down river in a flatboat, bound for New Orleans. His companions on this journey were Captain Cummings,[278] an engineer who had been in the government service, to whom Audubon became much attached; Joseph R. Mason, a promising artist of eighteen, in the _rôle_ of pupil-assistant, and his dog "Dash." Although Audubon had no funds, he was careful to provide himself with letters to or from men of mark who could be of assistance to him and this custom was followed to good effect at a much later day. On this occasion he bore recommendations from William H. Harrison, who afterwards became President, to Governor Miller of Arkansas, and from Henry Clay, as well as his letter from Rev. Elijah Slack, in which it was stated that the naturalist was traveling to complete his collection of the birds of the United States which he intended to publish at some future time. Audubon also wrote a personal letter to Governor Miller, fully outlining his plans, and asking for information; he told the Governor that he had been working fifteen years, and that his drawings of birds and plants were all from nature and life-size, showing that the idea of publication which was afterwards realized was then fixed in his mind. Audubon kept a careful journal on this journey, which extended over a year, the last entry being for the close of 1821.[279] As their flatboat stopped at many towns and plantations on the rivers, Audubon could hunt game and birds to his heart's content. Having resolved, as he said, never to draw from a stuffed specimen, he worked at every new bird with the greatest diligence. It seems almost incredible that he should never have met with the Hermit Thrush before this journey, yet under date of "Oct. 14, 1820," there is this entry: "We returned to our boat with a Wild Turkey, a Telltale Godwit and a Hermit Thrush, which was too much torn to make a drawing of it; this was the first time I had met with this bird, and I felt particularly mortified at its condition."[280]