The Ohio Company, which was organized in Boston in the year 1787, built a stockade fort during the next two years, at Marietta, and named it Campus Martius. The year it was completed, the Rev. Daniel Storey, a preacher at Worcester, Massachusetts, was sent out as a chaplain. He acted as an evangelist till 1797, when he became the pastor of a Congregational church which he had been instrumental in collecting in Marietta and the adjoining towns, and which was organized the preceding year. He held that relation till the spring of 1804. Probably he was the first Protestant minister whose voice was heard in the vast wilderness lying to the north-west of the Ohio river.

In the garrison at Marietta was witnessed the formation and successful operation of one of the first Sunday schools in the United States. Its originator, superintendent and sole teacher, was Mrs. Andrew Lake, an estimable lady from New York. Every Sabbath, after "Parson Storey" had finished his public services, she collected as many of the children at her house as would attend, and heard them recite verses from the Scriptures, and taught them the Westminster catechism. Simple in her manner of teaching and affable and kind in her disposition, she was able to interest her pupils—usually about twenty in number—and to win their affections to herself, to the school, and, subsequently, in some instances, to the Saviour. A few, at least, of the little children that used to sit on rude benches, low stools and the tops of meal bags, and listen to her sacred instructions and earnest admonitions, have doubtless ere this became pupils, with her, in the "school of Christ" above.