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George Armstrong — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this George Armstrong across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 4-person household.
Age 75
b. ~1865
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Armstrong |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Highest Grade | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Springfield |
| Est. Birth Year | ~1865 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| George Armstrong | Head | — | 75 | ~1865 |
| James Armstrong | Son | — | 20 | ~1920 |
| Glenn Armstrong | Son | — | 27 | ~1913 |
| Lula Armstrong | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Sangamon, Illinois
Head, age 54
Sangamon, Illinois · implied b. ~1866 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | English |
| Occupation | Yes |
| Industry | Machinist |
| Class of Worker | Rail Road |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Illinois |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Head, age 64
Sangamon, Illinois · implied b. ~1866 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | Geo. V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 31 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ohio |
| Occupation | Retired |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000.00 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Head, age 75
Sangamon-County, Illinois · implied b. ~1865 — 4 household members
| Surname | Armstrong |
| Given Name | George |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (County) | Sangamon |
| Highest Grade | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links George Armstrong across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
George Armstrong
Head · 1940 · age 75 · b. ~1865 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00884-00716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Howard Raymond Howard | 0 | Son | — | Illinois |
| 42 | William Carr | 50 | Head | Laborer | Illinois |
| 43 | Lucy Carr | 49 | Wife | Housemaid | Tennessee |
| 44 | John Mount | 58 | Head | Laborer | Illinois |
| 45 | Mary Mount | 50 | Wife | — | Illinois |
| 46 | Arthur Mount | 28 | Son | New Worker | Illinois |
| 47 | Wilbert Mount | 22 | Son | New Worker | Illinois |
| 48 | William Mount | 16 | Son | New Worker | Illinois |
| 49 | Calvin Mount | 15 | Son | — | Illinois |
| 51 | Ernest Neuber | 31 | Head | Truck Driver | Illinois |
| 52 | Loretta Neuber | 27 | Wife | — | Illinois |
| 53 | Ernest Jr. Neuber | 7 | Son | — | Illinois |
| 54 | Nancyann Neuber | 4 | Daughter | — | Illinois |
| 55 | Richard Neuber | 2 | Son | — | Illinois |
| 56 | Henry Killen | 30 | Head | Meter Reader | Illinois |
| 57 | Margaret Killen | 26 | Wife | — | Scotland |
| 58 | Beverly Killen | 8 | Daughter | — | Illinois |
| 59 | Henry Jr. Killen | 6 | Son | — | Illinois |
| 60 | George Smith | 53 | Head | Truck Driver | Illinois |
| 61 | Alice Smith | 33 | Wife | — | Illinois |
| 62 | Verna Smith | 8 | Daughter | — | Illinois |
| 63 | Doris Smith | 5 | Daughter | — | Illinois |
| 64 | Edward Smith | 5 | Son | — | Illinois |
| 65 | Carol Smith | 2 | Daughter | — | Illinois |
| 66 | George Armstrong THIS PERSON | 75 | Head | — | Illinois |
| 67 | Lula Armstrong | 64 | Wife | — | Illinois |
| 68 | Glenn Armstrong | 27 | Son | Truck Driver | Illinois |
| 69 | James Armstrong | 20 | Son | Truck Driver | Illinois |
| 70 | Nicholas Herman | 43 | Head | Laborer | Illinois |
| 71 | Elizabeth Herman | 35 | Wife | — | Oklahoma |
| 72 | George Killen | 58 | Head | Laborer | Illinois |
| 73 | Minnie Killen | 49 | Wife | — | Illinois |
| 74 | James Killen | 25 | Son | New Worker | Illinois |
| 75 | Charles Killen | 21 | Son | Laborer | Illinois |
| 76 | Leonard Herman | 46 | Brother | Sheet Metal Worker | Illinois |
| 77 | August Schmidt | 53 | Head | — | Illinois |
| 78 | Mary Schmidt | 45 | Wife | Boiler Maker | Illinois |
| 79 | Maryalice Schmidt | 28 | Daughter | — | Illinois |
| 80 | Floyd Roy | 23 | Head | Welder | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)