WM
Walter Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Adams-County, Illinois
Our Model Tree links this Walter Mason across the 1920, 1930 and 1940 US Censuses in Adams-County, Illinois (XGBoost, ~Confirmed), with identified parents Martin & Emma — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, Illinois |
| Surname | Mason |
| Given Name | Walter R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | McKee Township |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Mckee Township |
| Est. Birth Year | ~1918 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Mason | Daughter | — | 19 | ~1921 |
| Mary Mason | Head | — | 64 | ~1876 |
| Walter Mason | Son | — | 22 | ~1918 |
| Fredie Mason | Other | — | 5 | ~1935 |
Census Appearances
1920
Adams, Illinois
Son, age 2
Adams, Illinois · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | No |
| Can Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Adams, Illinois
Son, age 12
Adams, Illinois · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Walter R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Adams-County, Illinois
Son, age 22
Adams-County, Illinois · implied b. ~1918 — 4 household members
| Surname | Mason |
| Given Name | Walter R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | McKee Township |
| 1935 Residence (County) | Adams |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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. Identified parents: father Martin Mason (~0.92 confidence) and mother Emma Mason (~0.92 confidence) and mother Mary Mason (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Mason
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Emma Mason
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Mason
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Mason
Son · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Dorothy Mason
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Adams-County, Illinois
Open full size
1940 US Federal Census — Adams-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00756-00393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Victor J. Likes | 36 | Head | Farmer | Illinois |
| 2 | Lois M. Likes | 33 | Wife | — | Illinois |
| 3 | Lois J. Likes | 12 | Daughter | — | Illinois |
| 4 | Limmie V. Likes | 8 | Son | — | Illinois |
| 5 | James Leach | 77 | Head | Farmer | Illinois |
| 6 | Leah G. Leach | 60 | Wife | — | Illinois |
| 7 | William S. Mason | 72 | Head | — | Illinois |
| 8 | Mary Mason | 64 | Head | Farmer | Illinois |
| 9 | Walter R. Mason THIS PERSON | 22 | Son | Farmer | Illinois |
| 10 | Dorothy H. Mason | 19 | Daughter | — | California |
| 11 | Fredie M. Mason | 5 | Adopted son | — | Illinois |
| 12 | Walter P. Randall | 61 | Head | Farmer | Illinois |
| 13 | Ethel B. Randall | 48 | Wife | — | Kansas |
| 14 | Debora J. Randall | 9 | Daughter | — | Illinois |
| 15 | Floyd R. Rife | 28 | Head | Truck Driver | Iowa |
| 16 | Ada Rife | 21 | Wife | — | Illinois |
| 17 | Floyd J. Rife | 4 | Son | — | Illinois |
| 18 | Eva J. Rife | 0 | Daughter | — | Illinois |
| 19 | John D. Mason | 55 | Head | Farmer | Illinois |
| 20 | Nell Mason | 54 | Wife | — | Illinois |
| 21 | Willie A. Mason | 25 | Son | — | Illinois |
| 22 | John F. Mcbride | 67 | Head | Farmer | Illinois |
| 23 | Cora L. Mcbride | 55 | Wife | Recreation Leader | Illinois |
| 24 | Anna G. Hultz | 57 | Head | — | Illinois |
| 25 | Virgil Hultz | 35 | Son | Laborer | Illinois |
| 26 | Fred W. Hultz | 32 | Son | Laborer | Illinois |
| 27 | Eva Hultz | 25 | Daughter | — | Illinois |
| 28 | Earl R. Hultz | 23 | Son | Farm Laborer | Illinois |
| 29 | Lily M. Hultz | 20 | Daughter | Seamstress | Illinois |
| 30 | Henry F. Mowen | 77 | Head | Farmer | Iowa |
| 31 | Mary E. Mowen | 74 | Wife | — | Illinois |
| 32 | Henry F. Mowen | 50 | Son | Laborer | Illinois |
| 33 | Bessie A. Mowen | 30 | Son | Farmer | Illinois |
| 34 | Roscoe C. Kirkham | 64 | Head | Farmer | Illinois |
| 35 | Lula Kirkham | 45 | Wife | — | Illinois |
| 36 | Ralph F. Kirkham | 12 | Son | — | Illinois |
| 37 | Louis N. Kirkham | 9 | Son | — | Illinois |
| 38 | Dorothy J. Kirkham | 2 | Daughter | — | Illinois |
| 39 | Elmer C. Smith | 64 | Head | Farmer | Illinois |
| 40 | Thomas O. Smith | 21 | Son | Farmer | Illinois |
Related Census Records
Pedigree Summary
Walter + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)