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James Simpson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Williams-County, North Dakota
Our Model Tree links this James Simpson across the 1920, 1930 and 1940 US Censuses in Williams-County, North Dakota (XGBoost, ~Confirmed), with identified parents James & Isaac — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Williams-County, North Dakota |
| Surname | Simpson |
| Given Name | James A. G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | division No. 4 |
| 1935 Residence (County) | Williams |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farm Laborer |
| Township / Ward | Division No 4 |
| Est. Birth Year | ~1912 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Alice Simpson | Daughter | — | 30 | ~1910 |
| James Simpson | Head | — | 64 | ~1876 |
| James Simpson | Son | — | 28 | ~1912 |
| Isabella Simpson | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Williams, North …
Son, age 8
Williams, North Dakota · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | James A G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Williams, North …
Son, age 18
Williams, North Dakota · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Williams-County, North …
Son, age 28
Williams-County, North Dakota · implied b. ~1912 — 4 household members
| Surname | Simpson |
| Given Name | James A. G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | division No. 4 |
| 1935 Residence (County) | Williams |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Simpson (~0.92 confidence) and father Isaac Simpson (~0.92 confidence) and mother Isabella Simpson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Simpson
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Isaac Simpson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Isabella Simpson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Simpson
Son · 1940 · age 28 · b. ~1912 · North Dakota
★ You are viewing this record
Sibling
Alice Simpson
Sibling · 1940 · age 30
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 — Williams-County, North Dakota
Open full size
1940 US Federal Census — Williams-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03018-00701)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edwin A. Moe | 53 | Head | Farmer | Minnesota |
| 42 | Jean Simpson | 59 | Head | Farmer | Scotland |
| 43 | Margaret A. Simpson | 56 | Wife | — | Scotland |
| 44 | Maurice Johnson | 27 | Hired Hand | Farm Laborer | North Dakota |
| 45 | Cora A. Marshall | 50 | Head | Farmer | Scotland |
| 46 | Hans Ropsland | 55 | Head | Farmer | Norway |
| 47 | Ingeborg Ropsland | 44 | Wife | — | Norway |
| 48 | Borghild Ropsland | 14 | Daughter | — | North Dakota |
| 49 | Lillian Ropsland | 10 | Daughter | — | North Dakota |
| 50 | James A. Simpson | 64 | Head | Farmer | Scotland |
| 51 | Isabella Simpson | 55 | Wife | — | Scotland |
| 52 | Alice E. Simpson | 30 | Daughter | — | North Dakota |
| 53 | James A. G. Simpson THIS PERSON | 28 | Son | Farm Laborer | North Dakota |
| 54 | Henry Bratvold | 54 | Head | Farmer | Minnesota |
| 55 | Hjalmar Bredeson | 48 | Head | Farm Laborer | Norway |
| 56 | John Lundhagen | 28 | Head | Farmer | North Dakota |
| 57 | Myrtle A. Lundhagen | 26 | Wife | — | North Dakota |
| 58 | Donald E. Lundhagen | 0 | Son | — | North Dakota |
| 59 | Embourt A. Delany | 56 | Head | Farmer | Minnesota |
| 60 | Hans Enget | 62 | Head | Farmer | Norway |
| 61 | Emelia Enget | 61 | Wife | — | Norway |
| 62 | Edwin H. Enget | 22 | Son | Highline | North Dakota |
| 63 | Olive J. Enget | 16 | Daughter | — | North Dakota |
| 64 | Olga J. Olson | 32 | H. Daughter | Housework | North Dakota |
| 65 | Inge Eklund | 54 | Head | Farmer | Minnesota |
| 66 | Mary Eklund | 55 | Wife | — | Minnesota |
| 67 | Leroy Eklund | 17 | Son | — | Minnesota |
| 68 | Telford O. Herfindahl | 25 | Head | Farmer | North Dakota |
| 69 | Helen Herfindahl | 26 | Wife | — | North Dakota |
| 70 | Ronald Telford Herfindahl | 0 | Son | — | North Dakota |
| 71 | Hulda E. Peterson | 63 | Head | Farmer | Minnesota |
| 72 | Alfred Benson | 55 | Brother | Farmer | Minnesota |
| 73 | Henry W. Bohman | 39 | Head | Farmer | South Dakota |
| 74 | Easter Bohman | 31 | Wife | — | North Dakota |
| 75 | Fanny Bohman | 58 | Mother | — | Minnesota |
| 76 | Evelyn A. Bohman | 31 | Sister | — | South Dakota |
| 77 | Claus Nelson | 54 | Uncle | — | Minnesota |
| 78 | Alice Larson | 26 | Sister-in-law | Maid | North Dakota |
| 79 | Adolph Gustafson | 41 | Head | Farmer | Norway |
| 80 | Olaf Sandvold | 57 | Head | Farmer | Norway |
Related Census Records
Pedigree Summary
James + 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)