JD
James Douglas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Perry-County, Illinois
Our Model Tree links this James Douglas across the 1930 and 1940 US Censuses in Perry-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Perry-County, Illinois |
| Surname | Douglas |
| Given Name | James Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Swanwick Tp |
| 1935 Residence (County) | Perry |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Swanwick Tp |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Douglas | Daughter | — | 2 | ~1938 |
| Betty Douglas | Daughter | — | 10 | ~1930 |
| Minnie Douglas | Daughter | — | 8 | ~1932 |
| Helen Douglas | Daughter | — | 6 | ~1934 |
| Iona Douglas | Daughter | — | 19 | ~1921 |
| James Douglas | Son | — | 12 | ~1928 |
| Samuel Douglas | Son | — | 13 | ~1927 |
| William Douglas | Son | — | 18 | ~1922 |
| Jack Douglas | Son | — | 14 | ~1926 |
| Thomas Douglas | Son | — | 13 | ~1927 |
| Katherine Douglas | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Perry, Illinois
Son, age 2
Perry, Illinois · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Perry-County, Illinois
Son, age 12
Perry-County, Illinois · implied b. ~1928 — 11 household members
| Surname | Douglas |
| Given Name | James Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Swanwick Tp |
| 1935 Residence (County) | Perry |
| Highest Grade | 5 |
| 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 James Douglas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Douglas
Son · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Dorothy Douglas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iona Douglas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Douglas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Douglas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Douglas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Douglas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Douglas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Douglas
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Douglas
Sibling · 1940 · age 10
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 — Perry-County, Illinois
Open full size
1940 US Federal Census — Perry-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00866-00607)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine Douglas | 42 | Wife | — | Illinois |
| 2 | Iona June Douglas | 19 | Daughter | — | Illinois |
| 3 | William Hood Douglas | 18 | Son | Laborer | Illinois |
| 4 | Jack Charles Douglas | 14 | Son | — | Illinois |
| 5 | Samuel Earl Douglas | 13 | Son | — | Illinois |
| 6 | Thomas Merle Douglas | 13 | Son | — | Illinois |
| 7 | James Ernest Douglas THIS PERSON | 12 | Son | — | Illinois |
| 8 | Betty Joan Douglas | 10 | Daughter | — | Illinois |
| 9 | Minnie Jean Douglas | 8 | Daughter | — | Illinois |
| 10 | Helen Margaret Douglas | 6 | Daughter | — | Illinois |
| 11 | Dorothy Eugene Douglas | 2 | Daughter | — | Illinois |
| 12 | Erma Blair | 55 | Head | Farming | Illinois |
| 13 | Eliza J. Boyle | 80 | Head | Housework | Illinois |
| 14 | James E. Boyle | 39 | Son | Farming | Illinois |
| 15 | John C. Boyle | 36 | Son | Farming | Illinois |
| 16 | Sam White | 72 | Head | Farming | Illinois |
| 17 | George White | 34 | Son | Farming | Illinois |
| 18 | Mary D. White | 21 | Daughter-in-law | Housework | Illinois |
| 19 | Samuel White | 0 | Grandson | — | Illinois |
| 20 | Sarah R. White | 72 | Wife | Housework | Illinois |
| 21 | Marshall Morris | 29 | Lodger | Farm Hand | Illinois |
| 22 | Rollie M. Elsea | 35 | Head | Grocery Clerk | Missouri |
| 23 | Clara Elsea | 28 | Wife | Housework | Kentucky |
| 24 | Charles Elsea | 10 | Son | — | Illinois |
| 25 | James Geggie | 81 | Head | Farming | Scotland |
| 26 | Agnes Geggie | 79 | Wife | — | Scotland |
| 27 | Helen Ken Geggie | 45 | Daughter | Housework | Scotland |
| 28 | Ewart Geggie | 36 | Son | Farming | Illinois |
| 29 | Nellie Geggie | 26 | Daughter | Housework | Illinois |
| 30 | Hugh K. Wilson | 36 | Head | Section Laborer | Illinois |
| 31 | Viola Wilson | 34 | Wife | Housework | Missouri |
| 32 | Lorne Wilson | 15 | Daughter | — | Illinois |
| 33 | David Wilson | 6 | Son | — | Illinois |
| 34 | Lena Volpert | 33 | Sister-in-law | Housework | Texas |
| 35 | Marguerita Volpert | 28 | Niece | Housework | Missouri |
| 36 | Leroy Volpert | 23 | Brother-in-law | Section Laborer | Missouri |
| 37 | Stanley Volpert | 22 | Brother-in-law | Farm Worker | Missouri |
| 38 | Everette Volpert | 20 | Brother-in-law | Farm Worker | Missouri |
| 39 | George Deenhart | 38 | Head | Store Keeper | Illinois |
| 40 | James Garrett | 56 | Head | Farming | Missouri |
Related Census Records
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)