The federal survey: ruling the valley into squares

The Second Principal Meridian, the township plats, and the boundary lines

The county itself is survey language. The act that organized St. Joseph County, approved 29 January 1830 and quoted in the county history the 1875 atlas prints, bounds the county in the surveyor's terms — from range No. 2 west of the Second Principal Meridian east to Range 3 East, and thirty miles south from the state line. The rectangle preceded the settlement: the valley's townships were laid out on the federal grid of townships six miles square, ranges counted from the Second Principal Meridian and townships north from the Ohio, and the city of South Bend stands where Townships 37 and 38 North meet Ranges 2 and 3 East on the meridian's count. The plats of those townships — the surveyor's drawing of every section line, every lot, and the river's course meandered reach by reach where it crossed the grid — are the founding maps of everything that follows, the sheets from which every landowner map, atlas and plat book in this section ultimately copies.

Where the survey record lives. Indiana's federal land records are divided between two keepers. The Bureau of Land Management's General Land Office Records site serves the federal side — the patents, the survey plats and the field notes. The Indiana Archives and Records Administration holds the state's share: its land-records pages describe the General Land Office plat maps, field notes and tract books the federal government transferred to Indiana, and the succession of land offices through which the land was sold — Vincennes (1804), Jeffersonville (1807), Brookville (1819, removed to Indianapolis 1825), Terre Haute (1819, removed to Crawfordsville 1828), Fort Wayne (1822), and LaPorte (1833, removed to Winamac 1839), the first office in the northern tier, opened two years after this town was platted. The individual deputy surveyors who ran the valley's township lines in the cession years are not established in the sources reached — the county's Before the City file records the same finding — and the names stand in the field notes themselves, at the two archives named above: the pull is named here as the update cycle's first survey task, and no name is guessed in the meantime.

The county made its own copy at once. The 1875 atlas's history of the county's first civil year records, from the commissioners' record, that William Clark was appointed county surveyor and "ordered to procure certified copies from the registers of different land offices where land had been sold; field notes of townships, ranges, sections, fractional sections, as originally surveyed, and deposit them in the recorder's office of St. Joseph County." The county's plat archive begins with that order: the survey was federal, but the working copy was local from 1831, and every later county map in this section descends from the recorder's deposit as much as from Washington.

The boundary lines are maps too. The library's map case holds two copies of an 1827 sheet cataloged as the Plat of the Northern Boundary Line, State of Indiana — the drawn record of the state line that caps the county's northern townships, the line the treaty geography of the cession years already reckoned from, run due east from the lake's southern extreme, as the Before the City file carries the 1828 treaty's boundary call. And the Michigan Road, the state road the 1826 treaty granted, was itself a surveyed work before it was a road: a hundred-foot strip from Lake Michigan to the Wabash with a section of land for every mile of its length, its line crossing the same divide the portage had crossed, a few miles west.

Sources:

1. An Illustrated Historical Atlas of St. Joseph Co., Indiana (Higgins, Belden & Co., Chicago, 1875) — its county history quoting the organizing act of 29 January 1830 for the survey-language boundaries, and the commissioners' record for the William Clark surveyor order; full text read at the Internet Archive (the Allen County Public Library copy).
2. Indiana Archives and Records Administration, land records pages — the General Land Office plat maps, field notes and tract books held by the Archives, and the land-office succession (Vincennes 1804; Jeffersonville 1807; Brookville 1819; Terre Haute 1819; Fort Wayne 1822; LaPorte 1833, with removals).
3. Bureau of Land Management, General Land Office Records — patents, survey plats and field notes for Indiana townships.
4. St. Joseph County Public Library map case finding aid (20 December 2021) — the 1827 Plat of the Northern Boundary Line, two copies.
5. Before the City file of this history — the 1828 treaty boundary call from the line run due east from the lake's southern extreme; the Michigan Road grant's hundred-foot strip and section-per-mile terms.