JP
John Pearson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ward-County, North Dakota
Our Model Tree links this John Pearson across the 1930 and 1940 US Censuses in Ward-County, North Dakota (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ward-County, North Dakota |
| Surname | Pearson |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | SUNDRE Township |
| 1935 Residence (County) | Ward |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 240 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Laborer |
| Township / Ward | Sundre Township |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Donna Pearson | Daughter | — | 9 | ~1931 |
| John Pearson | Head | — | 64 | ~1876 |
| Milton Grothe | Son | — | 31 | ~1909 |
| Harold Pearson | Son | — | 16 | ~1924 |
| Melvin Grothe | Son | — | 26 | ~1914 |
| Earl Pearson | Son | — | 14 | ~1926 |
| John Pearson | Son | — | 21 | ~1919 |
| Mary Grothe | Spouse | — | 66 | ~1874 |
| Alma Pearson | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Ward, North …
Son, age 11
Ward, North Dakota · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pearson |
| Given Name | Johnny A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer |
| Industry | Dairy farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Ward-County, North …
Son, age 21
Ward-County, North Dakota · implied b. ~1919 — 9 household members
| Surname | Pearson |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | SUNDRE Township |
| 1935 Residence (County) | Ward |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 240 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 John Pearson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Pearson
Son · 1940 · age 21 · b. ~1919 · North Dakota
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Sibling
Milton Grothe
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Grothe
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Pearson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Pearson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donna Pearson
Sibling · 1940 · age 9
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 — Ward-County, North Dakota
Open full size
1940 US Federal Census — Ward-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03017-01026)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A. Pearson | 64 | Head | Farmer | Sweden |
| 2 | Alma Pearson | 52 | Wife | — | Minnesota |
| 3 | John A. Pearson THIS PERSON | 21 | Son | Laborer | North Dakota |
| 4 | Harold C. Pearson | 16 | Son | Laborer | North Dakota |
| 5 | Earl F. Pearson | 14 | Son | — | North Dakota |
| 6 | Donna Mae Pearson | 9 | Daughter | — | North Dakota |
| 7 | Mary Grothe | 66 | Wife | — | Norway |
| 8 | Milton I. Grothe | 31 | Son | Farmer | North Dakota |
| 9 | Melvin R. Grothe | 26 | Son | Farmer | North Dakota |
| 10 | Daniel J. Mahoney | 77 | Head | — | Illinois |
| 11 | Gertrude Mahoney | 30 | Daughter | — | North Dakota |
| 12 | James E. Mahoney | 28 | Son | Farmer | North Dakota |
| 13 | Charles J. Mahoney | 32 | Head | Farmer | Nebraska |
| 14 | Leona E. Mahoney | 30 | Wife | — | Minnesota |
| 15 | Charles J. Mahoney | 10 | Son | — | North Dakota |
| 16 | Marlys Jean Mahoney | 8 | Daughter | — | North Dakota |
| 17 | John A. Mahoney | 5 | Son | — | North Dakota |
| 18 | Ardis M. Mahoney | 4 | Daughter | — | North Dakota |
| 19 | Daniel G. Mahoney | 1 | Son | — | North Dakota |
| 20 | Raymond E. George | 40 | Head | Laborer | Minnesota |
| 21 | Emma J. George | 28 | Wife | — | North Dakota |
| 22 | June M. George | 11 | Daughter | — | North Dakota |
| 23 | Ernest H. George | 8 | Son | — | North Dakota |
| 24 | Louise E. George | 7 | Daughter | — | North Dakota |
| 25 | Richard W. George | 5 | Son | — | North Dakota |
| 26 | Bennie I. Iverson | 50 | Head | Farmer | Minnesota |
| 27 | Junius Iverson | 62 | Brother | — | Minnesota |
| 28 | William Oelrich | 77 | Head | — | Minnesota |
| 29 | Raymond E. Welton | 25 | Nephew | Farmer | Montana |
| 30 | Fred Schell | 49 | Hired Hand | Laborer | North Dakota |
| 31 | Henry V. Larson | 35 | Head | Farmer | North Dakota |
| 32 | Olaf Moen | 44 | Head | Farmer | Norway |
| 33 | Botshild Moen | 43 | Wife | — | North Dakota |
| 34 | Albert P. Moen | 20 | Son | — | North Dakota |
| 35 | George N. Moen | 17 | Son | Laborer | North Dakota |
| 36 | Elda E. Moen | 15 | Daughter | — | North Dakota |
| 37 | Melvin R. Moen | 13 | Son | — | North Dakota |
| 38 | Lilly C. Moen | 12 | Daughter | — | North Dakota |
| 39 | Arthur R. Moen | 10 | Son | — | North Dakota |
| 40 | Ida K. Moen | 8 | Daughter | — | North Dakota |
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)