WM
Walter Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tazewell-County, Illinois
Our Model Tree links this Walter Mason across the 1920, 1930 and 1940 US Censuses in Tazewell-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tazewell-County, Illinois |
| Surname | Mason |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Armington Village |
| 1935 Residence (County) | Tazewell |
| Additional Details | |
| Occupation | manager |
| Industry | gas station |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 1560 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Manager |
| Township / Ward | Armington Village |
| Est. Birth Year | ~1878 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Luella Mason | Daughter | — | 27 | ~1913 |
| Anna Mason | Spouse | — | 56 | ~1884 |
| Walter Mason | Head | — | 62 | ~1878 |
Census Appearances
1920
Tazewell, Illinois
Head, age 42
Tazewell, Illinois · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Walter M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Foreman |
| Industry | R.R. Section |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Tazewell, Illinois
Head, age 52
Tazewell, Illinois · implied b. ~1878 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Walter M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Drayman |
| Industry | General |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tazewell-County, Illinois
Head, age 62
Tazewell-County, Illinois · implied b. ~1878 — 3 household members
| Surname | Mason |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Armington Village |
| 1935 Residence (County) | Tazewell |
| Occupation | manager |
| Industry | gas station |
| Class of Worker | OA |
| Hours Worked | 84 |
| Income (1939) | 1560 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Walter Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Walter Mason
Head · 1940 · age 62 · b. ~1878 · 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 — Tazewell-County, Illinois
Open full size
1940 US Federal Census — Tazewell-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00894-00655)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Mason THIS PERSON | 62 | Head | Manager | Illinois |
| 2 | Anna Mason | 56 | Wife | — | Illinois |
| 3 | Luella Mason | 27 | Daughter | — | Illinois |
| 4 | Edgar Freeman | 70 | Head | — | Kentucky |
| 5 | Charles Beal | 67 | Head | — | Indiana |
| 6 | Ann Mrs. Graham | 60 | Head | — | Illinois |
| 7 | Thomas Beare | 59 | Head | Trucker | Illinois |
| 8 | Blanche Bumgardner | 25 | Head | — | North Dakota |
| 9 | Ronald Bumgardner | 3 | Son | — | Illinois |
| 10 | J. S. Garr | 61 | Head | Track Man | Illinois |
| 11 | Stella Garr | 54 | Wife | — | Illinois |
| 12 | Lawrence Garr | 28 | Son | Truck Driver | Illinois |
| 13 | Ernie Garr | 20 | Son | Laborer | Illinois |
| 14 | Charles V. Garr | 12 | Son | — | Illinois |
| 15 | Donal Anderson | 26 | Head | Tree Cutter | Illinois |
| 16 | Viola Anderson | 21 | Wife | — | Kentucky |
| 17 | Naomi Jean Anderson | 4 | Daughter | — | Illinois |
| 18 | Donal Calvin Anderson | 1 | Son | — | Illinois |
| 19 | Mary Francis Kays | 31 | Head | Chief Operator | Kentucky |
| 20 | Walter Brown | 62 | Head | Builder | Indiana |
| 21 | Maude Brown | 60 | Wife | — | Michigan |
| 22 | Theresia Brown Jones | 30 | Daughter | Teacher | Illinois |
| 23 | Joe Derach | 49 | Head | Manager | Illinois |
| 24 | Sylvia Derach | 48 | Wife | — | Illinois |
| 25 | Tom Wendell Derach | 22 | Son | Teacher | Illinois |
| 26 | Chester Cox | 64 | Head | Sexton | Kentucky |
| 27 | Addie Cox | 52 | Wife | Nursemaid | Kentucky |
| 28 | Konrad Rogers | 69 | Head | — | Kentucky |
| 29 | Sallie Rogers | 65 | Wife | — | Kentucky |
| 30 | Frank Spencer | 65 | Head | Track Man | Illinois |
| 31 | Mildred Spencer | 30 | Wife | — | Kentucky |
| 32 | Mary Elizabeth Spencer | 8 | Daughter | — | Illinois |
| 33 | Edna May Spencer | 1 | Daughter | — | Illinois |
| 34 | Ralph Mason | 49 | Head | Laborer | Illinois |
| 35 | Agnes Mason | 34 | Wife | — | Missouri |
| 36 | Ralph Edward Mason | 20 | Son | — | Illinois |
| 37 | Doris Jane Mason | 16 | Daughter | — | 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)