Population: Open Questions and Their Sources

As of November 2026

What this section could not settle prints here, by name, rather than disappearing:

• GAP-POP-1 — The 1840 township counts. The Sixth Census's published Compendium runs Indiana by counties, and the enumeration volume that prints townships is not among the Bureau's posted 1840 volumes. Settler: the Sixth Census enumeration volume (1841), Indiana table — HathiTrust's copy of the Blair and Rives printing.
• GAP-POP-2 — The 1860 township counts. The Eighth Census's published Volume I runs Indiana by county in its state tables (its Table No. 1 series); no township table for Indiana was reached in it.
• GAP-POP-3 — The 1960 township counts. The 1960 Census of Population's Indiana part (Vol. I, Part 16; the PC(1)-16A report, Table 6) prints Clay and Harris for 1960 and 1950; the Bureau's posted scan series of the 1960 bound volume currently carries Parts 19–54 only, and Part 16 was not reached. Settlers: HathiTrust's copy of the 1960 Vol. I Part 16, or the 1970 Census Vol. I Part 16 table, which prints 1960 alongside 1970.
• GAP-POP-4 — The 1990 count of Black residents, Granger CDP. The place's row in the general volume's race table (CP-1-16, Table 5) was not located in the text copy worked from; the White and Asian/Pacific Islander lines stand from the group tables. The residual after those two lines (282 persons) includes the American Indian and other-race lines and is NOT printed as a Black count anywhere in this section. Settler: the printed CP-1-16, Table 5, or 1990 STF1A for the CDP.
• GAP-POP-5 — The 2000 income and education profile.Settler: PHC-2-16 via the Bureau's library or HathiTrust; STATS Indiana's 2000 DP-3 profile for the CDP as a cross-check.
• GAP-POP-6 — The ACS vintage series. The overlapping five-year profiles between 2005–2009 and 2020–2024 (the survey-era course year by year) were not pulled first-hand: the Bureau's API now requires a key, and the public profile services serve only the current release. Settlers: the Bureau's per-vintage ACS table-based summary files; the Missouri Census Data Center's archived ACS profiles for place 28800; IPUMS NHGIS's ACS series.
• The Clay Township falls (1890 and 1920). Not a missing count but an unexplained one: the volumes print Clay's falls to 1,133 (1890) and 1,165 (1920) without a boundary footnote that accounts for them (the 1930 volume's county footnote touches German, Portage, and Penn only). Settlers: the Eleventh and Fourteenth Census volumes' Indiana boundary notes read whole; South Bend's annexation ordinances of the 1880s and 1910s (city clerk's record); the Holy Cross institutions' own enumerations for the census years.
• Uncarried cells, for the record: CP-2-16's Granger row carries one final column this history could not read whole (its table stub was not legible in the copy reached), and two trailing columns of PHC-1-16's race table and the middle columns of CP-2-16's labor-force table were likewise not carried.

Sources:

1. The volumes and files as cited in the articles above; the Bureau's decennial library listings as read 2026-11-11 (the 1840, 1860, and 1960 holdings described from the Bureau's own posted folders).