Foreign immigrants began to appear in small numbers, but the new arrivals were still largely of Southern upland stock, mainly of Scottish ancestry. By the Federal Census of 1850 Iowa had nearly 200,000 people and, although the settlement had begun at the most only seventeen years before, one-fourth of the population was Iowa-born.
As in the Old Northwest Territory, the direct contribution of New England was small. Most of the settlers came from adjoining States, and, while many of them went back to New England in pedigree, a still larger number in the early years came from the Southern States. This was true in Iowa nearly up to the time of the Civil War.
The ebb and flow of population in these States was so rapid as to make the task of tracing its details difficult. Thus in 1843 meetings were held in various points in Iowa to form companies of emigrants for Oregon. In 1849 the territory contributed its share to the California gold rush. Whole communities were depopulated almost as fast as they had been populated a few years previously, but many of these travellers probably returned after failing to find fortune ready to hand in the Golden State. Ohio was sending on settlers to the three States beyond her. Indiana and Illinois were attracting large bodies of settlers from Ohio but sending on others to Iowa. Iowa itself was contributing heavily to the population of Utah and Oregon. But these were all of the old native English Nordic stock.
By 1860 Iowa had a population of 674,913. The foreign-born made up nearly one-sixth of the total, two-thirds were German or Irish, and the remainder English or Scandinavian.
Iowa, by the outbreak of the Civil War, had become a Northern State, not so much from the direct New England immigration (only 25,000 of its people were New England born) as from the general drift of population, and from the fact that, as pointed out previously, many of the Southerners who came into the Northwest Territory had very little sympathy with the slave-holding point of view.
Iowa then entered the Union as a State almost completely Nordic and overwhelmingly Anglo-Saxon, populated by settlers from all parts of the original States who were moving westward in the hope of finding an advantage. What an immigrant of the 1830's said about Iowa pioneers he encountered, holds good of most of the westward movement—that it was made up of three classes: "men with families seeking to ameliorate fortune, men with families seeking to retrieve fortune, and young men attempting fortune." While the first pioneer surge into a new territory often contained a surplus of bachelors, the permanent settlement was made by men who brought their families.
Kansas-Nebraska's settlement in the decade before the Civil War is a familiar episode to every one who remembers his American history.
Daniel Morgan Boone, a son of the Kentucky Pathfinder, is often alleged to have been the first American settler in Kansas, having been sent there by the government in 1819 to aid the Indians in agriculture. But the settlement of the State did not begin seriously until 1854, when treaties were made with the tribes of what was at that time an Indian territory.