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Charles Day — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stephenson-County, Illinois
Our Model Tree links this Charles Day across the 1920, 1930 and 1940 US Censuses in Stephenson-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Stephenson-County, Illinois |
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Freeport |
| 1935 Residence (County) | Stephenson |
| Additional Details | |
| Occupation | Conductor |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 102 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Conductor |
| Township / Ward | Freeport |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Day | Head | — | 51 | ~1889 |
| Dorothea Day | Spouse | — | 51 | ~1889 |
| Lois Day | Daughter | — | 20 | ~1920 |
Census Appearances
1920
Stephenson, Illinois
Head, age 31
Stephenson, Illinois · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Brake Man |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Stephenson, Illinois
Head, age 41
Stephenson, Illinois · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 26 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Conductor |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Stephenson-County, Illinois
Head, age 51
Stephenson-County, Illinois · implied b. ~1889 — 3 household members
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Freeport |
| 1935 Residence (County) | Stephenson |
| Occupation | Conductor |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 102 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Day
Head · 1940 · age 51 · b. ~1889 · 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 — Stephenson-County, Illinois
Open full size
1940 US Federal Census — Stephenson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00892-00509)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret Libby | 79 | Mother | — | Illinois |
| 42 | Robert Loewe | 49 | Head | Proprietor | Illinois |
| 43 | Emma Loewe | 52 | Wife | — | Illinois |
| 44 | Vera Loewe | 21 | Daughter | Stenographer | Illinois |
| 45 | Janet Loewe | 17 | Daughter | — | Illinois |
| 46 | Frank Hampel | 68 | Head | — | Illinois |
| 47 | Bernice Hampel | 36 | Daughter | Office Clerk | Illinois |
| 48 | Robert Hampel | 32 | Son | Pin Setter | Illinois |
| 49 | Roy Secker | 35 | Head | Machinist | Illinois |
| 50 | Edythe Secker | 35 | Wife | Tabulator | Illinois |
| 51 | June Williams | 23 | Sister-in-law | Clerk | Illinois |
| 52 | Charles Day THIS PERSON | 51 | Head | Conductor | Illinois |
| 53 | Dorothea Day | 51 | Wife | — | Illinois |
| 54 | Lois A. Day | 20 | Daughter | — | Illinois |
| 55 | Charles H. Sawyer | 35 | Head | Commercial Photographer | Illinois |
| 56 | Virginia Sawyer | 33 | Wife | Cashier | Iowa |
| 57 | Charles Sawyer | 9 | Son | — | Illinois |
| 58 | Johanna Sawyer | 5 | Daughter | — | Illinois |
| 59 | Carl J. Neumann | 35 | Head | Pressman | Illinois |
| 60 | Letha Neumann | 30 | Wife | — | Illinois |
| 61 | Idella Marie Neumann | 5 | Daughter | — | Illinois |
| 62 | Marie Neumann | 70 | Mother | — | Germany |
| 63 | Frederick Charles Bertram | 66 | Head | Plumber | Illinois |
| 64 | Nellie Farber Bertram | 72 | Wife | — | Illinois |
| 65 | August Theier | 50 | Head | Hustler | Illinois |
| 66 | Idella Theier | 50 | Wife | — | Illinois |
| 67 | Ralph Theier | 24 | Son | Clerk | Illinois |
| 68 | Robert Theier | 21 | Son | Bar Tender | Illinois |
| 69 | Russell Theier | 17 | Son | — | Illinois |
| 70 | Paul Neumann | 45 | Head | Machinist | Illinois |
| 71 | Ruth Neumann | 39 | Wife | — | Illinois |
| 72 | Riley Eisenline | 20 | Brother-in-law | Laundry Laborer | Illinois |
| 73 | Carl Loelle | 42 | Head | Driver | Illinois |
| 74 | Irene Loelle | 43 | Wife | — | Illinois |
| 75 | Kenneth Loelle | 18 | Son | Factory Laborer | Illinois |
| 76 | Frederick Loelle | 12 | Son | — | Illinois |
| 77 | Roger Loelle | 6 | Son | — | Illinois |
| 78 | Paul Rawleigh | 33 | Head | Labor | Illinois |
| 79 | Myrtle Rawleigh | 44 | Wife | — | Pennsylvania |
| 80 | Myrtle Mohness | 18 | Daughter | Labor | Pennsylvania |
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)