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Bertha Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Griggs-County, North Dakota
Our Model Tree links this Bertha Nelson across the 1920, 1930 and 1940 US Censuses in Griggs-County, North Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 3-person household.
Age 51
b. ~1889
Female
Spouse
Born: North Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Griggs-County, North Dakota |
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Binford |
| 1935 Residence (County) | Griggs |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Binford |
| Est. Birth Year | ~1889 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Nelson | Spouse | — | 51 | ~1889 |
| Martin Nelson | Head | — | 60 | ~1880 |
| Helen Nelson | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Griggs, North …
Spouse, age 29
Griggs, North Dakota · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Griggs, North …
Spouse, age 41
Griggs, North Dakota · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | North Dakota |
| Age at First Marriage | 25 |
| 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
Griggs-County, North …
Spouse, age 51
Griggs-County, North Dakota · implied b. ~1889 — 3 household members
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | North Dakota |
| 1935 Residence (City) | Binford |
| 1935 Residence (County) | Griggs |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 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 Bertha Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Bertha Nelson
Spouse · 1940 · age 51 · b. ~1889 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Griggs-County, North Dakota
Open full size
1940 US Federal Census — Griggs-County, North Dakota
Page Contents
31 people indexed on this census page (nara:1940:m-t0627-03003-00357)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Myrtle Paulson | 32 | Wife | School Teacher | North Dakota |
| 42 | Duane Paulson | 5 | Son | — | North Dakota |
| 43 | Thomas Paulson | 1 | Son | — | North Dakota |
| 44 | Ole B. Hanson | 70 | Head | — | Norway |
| 45 | Clifford Hanson | 21 | Grand-son | Operator | North Dakota |
| 46 | Julius Shorn | 55 | Head | — | North Dakota |
| 47 | Clara B. Shorn | 54 | Wife | — | Minnesota |
| 48 | Harold Eller | 43 | Head | Proprietor | Iowa |
| 49 | Ruby Eller | 42 | Wife | Proprietress | North Dakota |
| 50 | Austin M. Aaron | 35 | Head | Laborer | North Dakota |
| 51 | Florence M. Aaron | 28 | Wife | — | North Dakota |
| 52 | Faye Aaron | 7 | Daughter | — | North Dakota |
| 53 | Stanley H. Aaron | 6 | Son | — | North Dakota |
| 54 | Allen S. Aaron | 1 | Son | — | North Dakota |
| 55 | Paul A. Meurer | 32 | Head | Laborer | North Dakota |
| 56 | Olga A. Meurer | 28 | Wife | — | North Dakota |
| 57 | Donna J. Meurer | 8 | Daughter | — | North Dakota |
| 58 | Robert R. Meurer | 5 | Son | — | North Dakota |
| 59 | Carl A. Sjoberg | 42 | Lodger | Section Foreman | Sweden |
| 60 | L. Kimball St. Clair | 40 | Head | Elevator Manager | Nebraska |
| 61 | Esther E. St. Clair | 34 | Wife | — | South Dakota |
| 62 | Robert L. St. Clair | 9 | Son | — | South Dakota |
| 63 | Jerry D. St. Clair | 4 | Son | — | South Dakota |
| 64 | Martin Nelson | 60 | Head | Blacksmith | Norway |
| 65 | Bertha Nelson THIS PERSON | 51 | Wife | — | North Dakota |
| 66 | Helen Nelson | 23 | Daughter | Teacher | North Dakota |
| 67 | Oscar Ronninger | 53 | Head | Proprietor | Minnesota |
| 68 | Hilda Ronninger | 51 | Wife | Proprietress | Minnesota |
| 69 | Nordis Ronninger | 22 | Daughter | Attendant | North Dakota |
| 70 | Gilbert J. Nelson | 57 | Head | Farmer | Minnesota |
| 71 | Elena Nelson | 54 | Wife | — | Norway |
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)