The Southern element constituted the main portion of this phalanx of ax-bearers. Abraham Lincoln's father joined the throng of Kentuckians that entered the Indiana woods in 1816, and the boy, when he had learned to hew out a forest home, betook himself, in 1830, to Sangamon county, Illinois. He represents the pioneer of the period; but his ax sank deeper than other men's, and the plaster cast of his great sinewy hand, at Washington, embodies the training of these frontier railsplitters, in the days when Fort Dearborn, on the site of Chicago, was but a military outpost in a desolate country. While the hard woods of Illinois were being entered, the pioneer movement passed also into the Missouri Valley. The French lead miners had already opened the southeastern section, and Southern mountaineers had pushed up the Missouri; but now the planters from the Ohio Valley and the upper Tennessee followed, seeking the alluvial soils for slave labor. Moving across the southern border of free Illinois, they had awakened regrets in that State at the loss of so large a body of settlers.

Looking at the Middle West, as a whole, in the decade from 1810 to 1820, we perceive that settlement extended from the shores of Lake Erie in an arc, following the banks of the Ohio till it joined the Mississippi, and thence along that river and up the Missouri well into the center of the State. The next decade was marked by the increased use of the steamboat; pioneers pressed farther up the streams, etching out the hard wood forests well up to the prairie lands, and forming additional tracts of settlement in the region tributary to Detroit and in the southeastern part of Michigan. In the area of the Galena lead mines of northwestern Illinois, southwestern Wisconsin, and northeastern Iowa, Southerners had already begun operations; and if we except Ohio and Michigan, the dominant element in all this overflow of settlement into the Middle West was Southern, particularly from Kentucky, Virginia, and North Carolina. The settlements were still dependent on the rivers for transportation, and the areas between the rivers were but lightly occupied. The Mississippi constituted the principal outlet for the products of the Middle West; Pittsburgh furnished most of the supplies for the region, but New Orleans received its crops. The Old National road was built piecemeal, and too late, as a whole, to make a great artery of trade throughout the Middle West, in this early period; but it marked the northern borders of the Southern stream of population, running, as this did, through Columbus, Indianapolis, and Vandalia.

The twenty years from 1830 to 1850 saw great changes in the composition of the population of the Middle West. The opening of the Erie Canal in 1825 was an epoch-making event. It furnished a new outlet and inlet for northwestern traffic; Buffalo began to grow, and New York City changed from a local market to a great commercial center. But even more important was the place which the canal occupied as the highway for a new migration.

In the march of the New England people from the coast, three movements are of especial importance: the advance from the seaboard up the Connecticut and Housatonic Valleys through Massachusetts and into Vermont; the advance thence to central and western New York; and the advance to the interior of the Old Northwest. The second of these stages occupied the generation from about 1790 to 1820; after that the second generation was ready to seek new lands; and these the Erie Canal and lake navigation opened to them, and to the Vermonters and other adventurous spirits of New England. It was this combined New York-New England stream that in the thirties poured in large volume into the zone north of the settlements which have been described. The newcomers filled in the southern counties of Michigan and Wisconsin, the northern countries of Illinois, and parts of the northern and central areas of Indiana. Pennsylvania and Ohio sent a similar type of people to the area adjacent to those States. In Iowa a stream combined of the Southern element and of these settlers sought the wooded tributaries of the Mississippi in the southeastern part of the State. In default of legal authority, in this early period, they formed squatter governments and land associations, comparable to the action of the Massachusetts men who in the first quarter of the seventeenth century "squatted" in the Connecticut Valley.

A great forward movement had occurred, which took possession of oak openings and prairies, gave birth to the cities of Chicago, Milwaukee, St. Paul, and Minneapolis, as well as to a multitude of lesser cities, and replaced the dominance of the Southern element by that of a modified Puritan stock. The railroad system of the early fifties bound the Mississippi to the North Atlantic seaboard; New Orleans gave way to New York as the outlet for the Middle West, and the day of river settlement was succeeded by the era of inter-river settlement and railway transportation. The change in the political and social ideals was at least equal to the change in economic connections, and together these forces made an intimate organic union between New England, New York, and the newly settled West. In estimating the New England influence in the Middle West, it must not be forgotten that the New York settlers were mainly New Englanders of a later generation.

Combined with the streams from the East came the German migration into the Middle West. Over half a million, mainly from the Palatinate, Würtemberg, and the adjacent regions, sought America between 1830 and 1850, and nearly a million more Germans came in the next decade. The larger portion of these went into the Middle West; they became pioneers in the newer parts of Ohio, especially along the central ridge, and in Cincinnati; they took up the hardwood lands of the Wisconsin counties along Lake Michigan; and they came in important numbers to Missouri, Illinois, Indiana, and Michigan, and to the river towns of Iowa. The migration in the thirties and forties contained an exceptionally large proportion of educated and forceful leaders, men who had struggled in vain for the ideal of a liberal German nation, and who contributed important intellectual forces to the communities in which they settled. The Germans, as a whole, furnished a conservative and thrifty agricultural element to the Middle West. In some of their social ideals they came into collision with the Puritan element from New England, and the outcome of the steady contest has been a compromise. Of all the States, Wisconsin has been most deeply influenced by the Germans.

By the later fifties, therefore, the control of the Middle West had passed to its Northern zone of population, and this zone included representatives of the Middle States, New England, and Germany as its principal elements. The Southern people, north of the Ohio, differed in important respects from the Southerners across the river. They had sprung largely from the humbler classes of the South, although there were important exceptions. The early pioneer life, however, was ill-suited to the great plantations, and slavery was excluded under the Ordinance. Thus this Southern zone of the Middle West, particularly in Indiana and Illinois, constituted a mediating section between the South and the North. The Mississippi still acted as a bond of union, and up to the close of the War of 1812 the Valley, north and south, had been fundamentally of the same social organization. In order to understand what follows, we must bear in mind the outlines of the occupation of the Gulf Plains. While settlement had been crossing the Ohio to the Northwest, the spread of cotton culture and negro slavery into the Southwest had been equally significant. What the New England States and New York were in the occupation of the Middle West, Virginia, the Carolinas, and Georgia were in the occupation of the Gulf States. But, as in the case of the Northwest, a modification of the original stock occurred in the new environment. A greater energy and initiative appeared in the new Southern lands; the pioneer's devotion to exploiting the territory in which he was placed transferred slavery from the patriarchal to the commercial basis. The same expansive tendency seen in the Northwest revealed itself, with a belligerent seasoning, in the Gulf States. They had a program of action. Abraham Lincoln migrated from Kentucky to Indiana and to Illinois. Jefferson Davis moved from Kentucky to Louisiana, and thence to Mississippi, in the same period. Starting from the same locality, each represented the divergent flow of streams of settlement into contrasted environments. The result of these antagonistic streams of migration to the West was a struggle between the Lake and Prairie plainsmen, on the one side, and the Gulf plainsmen, on the other, for the possession of the Mississippi Valley. It was the crucial part of the struggle between the Northern and Southern sections of the nation. What gave slavery and State sovereignty their power as issues was the fact that they involved the question of dominance over common territory in an expanding nation. The place of the Middle West in the origin and settlement of the great slavery struggle is of the highest significance.

In the early history of Ohio, Indiana, and Illinois, a modified form of slavery existed under a system of indenture of the colored servant; and the effort of Southern settlers in Indiana and in Illinois to reintroduce slavery are indicative of the importance of the pro-slavery element in the Northwest. But the most significant early manifestation of the rival currents of migration with respect to slavery is seen in the contest which culminated in the Missouri Compromise. The historical obstacle of the Ordinance, as well as natural conditions, gave an advantage to the anti-slavery settlers northwest of the Ohio; but when the Mississippi was crossed, and the rival streams of settlement mingled in the area of the Louisiana Purchase, the struggle followed. It was an Illinois man, with constituents in both currents of settlement, who introduced the Missouri Compromise, which made a modus vivendi for the Middle West, until the Compromise of 1850 gave to Senator Douglas of Illinois, in 1854, the opportunity to reopen the issue by his Kansas-Nebraska bill. In his doctrine of "squatter-sovereignty," or the right of the territories to determine the question of slavery within their bounds, Douglas utilized a favorite Western political idea, one which Cass of Michigan had promulgated before. Douglas set the love of the Middle West for local self-government against its preponderant antipathy to the spread of slavery. At the same time he brought to the support of the doctrine the Democratic party, which ever since the days of Andrew Jackson had voiced the love of the frontier for individualism and for popular power. In his "Young America" doctrines Douglas had also made himself the spokesman of Western expansive tendencies. He thus found important sources of popular support when he invoked the localism of his section. Western appeals to Congress for aid in internal improvements, protective tariffs, and land grants had been indications of nationalism. The doctrine of squatter-sovereignty itself catered to the love of national union by presenting the appearance of a non-sectional compromise, which should allow the new areas of the Middle West to determine their own institutions. But the Free Soil party, strongest in the regions occupied by the New York-New England colonists, and having for its program national prohibition of the spread of slavery into the territories, had already found in the Middle West an important center of power. The strength of the movement far surpassed the actual voting power of the Free Soil party, for it compelled both Whigs and Democrats to propose fusion on the basis of concession to Free Soil doctrines. The New England settlers and the western New York settlers,—the children of New England,—were keenly alive to the importance of the issue. Indeed, Seward, in an address at Madison, Wisconsin, in 1860, declared that the Northwest, in reality, extended to the base of the Alleghanies, and that the new States had "matured just in the critical moment to rally the free States of the Atlantic coast, to call them back to their ancient principles."

These Free Soil forces and the nationalistic tendencies of the Middle West proved too strong for the opposing doctrines when the real struggle came. Calhoun and Taney shaped the issue so logically that the Middle West saw that the contest was not only a war for the preservation of the Union, but also a war for the possession of the unoccupied West, a struggle between the Middle West and the States of the Gulf Plains. The economic life of the Middle West had been bound by the railroad to the North Atlantic, and its interests, as well as its love of national unity, made it in every way hostile to secession. When Dr. Cutler had urged the desires of the Ohio Company upon Congress, in 1787, he had promised to plant in the Ohio Valley a colony that would stand for the Union. Vinton of Ohio, in arguing for the admission of Iowa, urged the position of the Middle West as the great unifying section of the country: "Disunion," he said, "is ruin to them. They have no alternative but to resist it whenever or wherever attempted. . . . Massachusetts and South Carolina might, for aught I know, find a dividing line that would be mutually satisfactory to them; but, Sir, they can find no such line to which the western country can assent." But it was Abraham Lincoln who stated the issue with the greatest precision, and who voiced most clearly the nationalism of the Middle West, when he declared, "A house divided against itself cannot stand. I believe this government cannot endure permanently half slave and half free."

So it was that when the civil war in Kansas grew into the Civil War in the Union, after Lincoln's election to the presidency, the Middle West, dominated by its combined Puritan and German population, ceased to compromise, and turned the scale in favor of the North. The Middle West furnished more than one-third of the Union troops. The names of Grant and Sherman are sufficient testimony to her leadership in the field. The names of Lincoln and Chase show that the presidential, the financial, and the war powers were in the hands of the Middle West. If we were to accept Seward's own classification, the conduct of foreign affairs as well belonged to the same section; it was, at least, in the hands of representatives of the dominant forces of the section. The Middle West, led by Grant and Sherman, hewed its way down the Mississippi and across the Gulf States, and Lincoln could exult in 1863, "The Father of Waters again goes unvexed to the sea. Thanks to the great Northwest for it, nor yet wholly to them."