HJ
Harry Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Nelson-County, North Dakota
Our Model Tree links this Harry Johnson across the 1920, 1930 and 1940 US Censuses in Nelson-County, North Dakota (XGBoost, ~Confirmed), with identified parents Ole & Anna — first a head (b.~1909), then head of a 8-person household.
Age 31
b. ~1909
Male
Head
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nelson-County, North Dakota |
| Surname | Johnson |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Melvin Township |
| 1935 Residence (County) | Nelson |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Occupation | Farmer |
| Township / Ward | Melvin Township |
| Est. Birth Year | ~1909 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Avis Johnson | Daughter | — | 2 | ~1938 |
| Donna Johnson | Daughter | — | 6 | ~1934 |
| Darlene Johnson | Daughter | — | 4 | ~1936 |
| Elsie Johnson | Daughter | — | 8 | ~1932 |
| Harry Johnson | Head | — | 31 | ~1909 |
| Anna Johnson | Other | — | 78 | ~1862 |
| Richard Johnson | Son | — | ~1940 | |
| Mabel Johnson | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Nelson, North …
Son, age 11
Nelson, North Dakota · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Nelson, North …
Son, age 21
Nelson, North Dakota · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Nelson-County, North …
Head, age 31
Nelson-County, North Dakota · implied b. ~1909 — 8 household members
| Surname | Johnson |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Melvin Township |
| 1935 Residence (County) | Nelson |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 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 Harry Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ole Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ole Johnson
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Johnson
Head · 1940 · age 31 · b. ~1909 · North Dakota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Nelson-County, North Dakota
Open full size
1940 US Federal Census — Nelson-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03008-00609)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ole A. Nelson | 32 | Head | Farmer | North Dakota |
| 2 | Myrtle Nelson | 20 | Wife | — | North Dakota |
| 3 | Ellen M. Nelson | 1 | Daughter | 0 | North Dakota |
| 4 | Ole H. Hildre|Hildrebrand | 56 | Head | Farmer | Norway |
| 5 | Mina Hildre|Hildrebrand | 52 | Wife | — | Norway |
| 6 | Jones M. Hildre|Hildrebrand | 25 | Son | Farm Labor | North Dakota |
| 7 | Maynard Hildre|Hildrebrand | 20 | Son | Farm Labor | North Dakota |
| 8 | Woodrow Hildre|Hildrebrand | 19 | Son | Farm Labor | North Dakota |
| 9 | Gloria M. Hildre|Hildrebrand | 11 | Daughter | — | North Dakota |
| 10 | M. H. Birth | 46 | Head | Farmer | North Dakota |
| 11 | Mary Birth | 44 | Wife | — | North Dakota |
| 12 | Arnold O. Birth | 23 | Son | Farm Labor | North Dakota |
| 13 | Melvin O. Birth | 22 | Son | Farm Labor | North Dakota |
| 14 | Bernardo M. Birth | 13 | Son | — | North Dakota |
| 15 | Jennings A. Birth | 9 | Son | — | North Dakota |
| 16 | Harold C. Birth | 6 | Son | — | North Dakota |
| 17 | Lois V. Birth | 0 | Son | 0 | North Dakota |
| 18 | William A. Reilly | 51 | Head | Farmer | Minnesota |
| 19 | Ellen Reilly | 39 | Wife | — | Minnesota |
| 20 | Ardamise Reilly | 18 | Daughter | — | Minnesota |
| 21 | William A. Reilly | 15 | Son | Farm Labor | North Dakota |
| 22 | Thomas L. Reilly | 13 | Son | — | North Dakota |
| 23 | James P. Reilly | 11 | Son | — | North Dakota |
| 24 | Mark S. B. Johnson | 51 | Head | Farmer | North Dakota |
| 25 | Martha Johnson | 39 | Wife | — | Norway |
| 26 | Robert J. Johnson | 6 | Son | — | North Dakota |
| 27 | Ona B. Johnson | 5 | Son | — | North Dakota |
| 28 | Fredrick Johnson | 2 | Son | 0 | North Dakota |
| 29 | Mary M. Johnson | 0 | Daughter | 0 | North Dakota |
| 30 | Harry A. Johnson THIS PERSON | 31 | Head | Farmer | North Dakota |
| 31 | Mabel C. Johnson | 25 | Wife | — | North Dakota |
| 32 | Elsie J. Johnson | 8 | Daughter | — | North Dakota |
| 33 | Donna L. Johnson | 6 | Daughter | — | North Dakota |
| 34 | Darlene F. Johnson | 4 | Daughter | 0 | North Dakota |
| 35 | Avis H. Johnson | 2 | Daughter | 0 | North Dakota |
| 36 | Richard B. Johnson | 0 | Son | 0 | North Dakota |
| 37 | Anna M. Johnson | 78 | Mother | — | Norway |
| 38 | Elex G. Berg | 55 | Head | Farmer | North Dakota |
| 39 | Oscar C. Rydell | 54 | Head | Farmer | Sweden |
| 40 | Kristina Rydell | 51 | Wife | — | North Dakota |
Related Census Records
Pedigree Summary
Harry
Gen 1 · 2 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)