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Charles Day — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Charles Day across the 1910, 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 4-person household.
Age 77
b. ~1863
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Day |
| Given Name | Charles D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Home |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Springfield |
| Est. Birth Year | ~1863 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Francis Day | Son | — | 32 | ~1908 |
| Elizabeth Day | Daughter | — | 35 | ~1905 |
| Charles Day | Head | — | 77 | ~1863 |
| Nellie Day | Spouse | — | 73 | ~1867 |
Census Appearances
1910
Sangamon, Illinois
Head, age 47
Sangamon, Illinois · implied b. ~1863 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| Years Married | 24 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Occupation | Loco Engineer |
| Industry | Rail Road |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Sangamon, Illinois
Head, age 57
Sangamon, Illinois · implied b. ~1863 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | Locomotive Engineer |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Head, age 67
Sangamon, Illinois · implied b. ~1863 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | engineer |
| Industry | steam railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Head, age 77
Sangamon-County, Illinois · implied b. ~1863 — 4 household members
| Surname | Day |
| Given Name | Charles D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Home |
| 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 Charles Day across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Day
Head · 1940 · age 77 · b. ~1863 · 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
40 people indexed on this census page (nara:1940:m-t0627-00884-00346)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Peterson | 42 | Head | Draftsman | Illinois |
| 42 | Lucille S Peterson | 36 | Wife | — | Illinois |
| 43 | Essie L Willis | 11 | Lodger | — | Illinois |
| 44 | Maydella Stauffer | 5 | Lodger | — | Illinois |
| 45 | Abbie Peterson | 72 | Mother | — | Illinois |
| 46 | Turner S Miller | 55 | Head | Conductor | Illinois |
| 47 | Nellie S Miller | 52 | Wife | — | Illinois |
| 48 | Eleanor Miller | 32 | Daughter | Proofreader | Illinois |
| 49 | Joseph W Appleton | 48 | Head | Lineman | Missouri |
| 50 | Louise Appleton | 51 | Wife | — | Illinois |
| 51 | Mary A Innis | 27 | Head | — | Illinois |
| 52 | James Mchavin | 67 | Brother | — | Illinois |
| 53 | Henry Laurent | 63 | Head | Miner | France |
| 54 | Rosalie Laurent | 61 | Wife | — | France |
| 55 | Paul Laurent | 39 | Son | Laborer | France |
| 56 | Marguerite Laurent | 36 | Daughter-in-law | — | Illinois |
| 57 | James Laurent | 13 | Grandson | — | Illinois |
| 58 | Paul Jr Laurent | 12 | Grandson | — | Illinois |
| 59 | Charles D Day THIS PERSON | 77 | Head | — | Illinois |
| 60 | Nellie S Day | 73 | Wife | — | Illinois |
| 61 | Elizabeth Day | 35 | Daughter | Stenographer | Illinois |
| 62 | Francis A Day | 32 | Son | Chemist | Illinois |
| 63 | Brent E Gamble | 50 | Head | Contractor | Illinois |
| 64 | Edith Gamble | 52 | Wife | — | Illinois |
| 65 | Walter Fitzgerald | 37 | Head | Salesman | Illinois |
| 66 | Lottie Fitzgerald | 39 | Wife | — | Illinois |
| 67 | William G Smith | 25 | Head | Trucker | Illinois |
| 68 | Muriel Smith | 21 | Wife | — | Illinois |
| 69 | Muriel Smith | 0 | Daughter | — | Illinois |
| 70 | Alfred H Wieties | 25 | Head | Coil Winder | Illinois |
| 71 | Margaret A Wieties | 23 | Wife | — | Oregon |
| 72 | Shirley Wieties | 0 | Daughter | — | Illinois |
| 73 | Bertha A Mcdermott | 50 | Mother-in-law | — | Illinois |
| 74 | Edwin Mcdermott | 12 | Brother-in-law | — | Illinois |
| 75 | Leonard Ormley | 72 | Head | — | Illinois |
| 76 | Rhoda Ormley | 68 | Wife | — | Illinois |
| 77 | John W Wilson | 61 | Head | Switchman | Illinois |
| 78 | Josephine Wilson | 62 | Wife | — | Missouri |
| 79 | Fred Wieties | 37 | Head | Tool & Die Maker | Illinois |
| 80 | Marie Wieties | 35 | Wife | — | 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)