PN
Peter Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cass-County, Minnesota
Our Model Tree links this Peter Nelson across the 1920, 1930 and 1940 US Censuses in Cass-County, Minnesota (XGBoost, ~Confirmed), with identified parents Peter & Peter — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Minnesota |
| Surname | Nelson |
| Given Name | Peter A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Roadwork |
| Industry | Highway |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 236 |
| Highest Grade | H-4 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Roadwork |
| Township / Ward | Moose Lake 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Peter | Age | Birth yr |
|---|---|---|---|---|
| Peter Nelson | Head | — | 31 | ~1909 |
| Mervin Nelson | Son | — | 5 | ~1935 |
| Donald Nelson | Son | — | 8 | ~1932 |
| Brutta Nelson | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Cass, Minnesota
Son, age 13
Cass, Minnesota · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Peter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Cass, Minnesota
Son, age 23
Cass, Minnesota · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Peter A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Cass-County, Minnesota
Head, age 31
Cass-County, Minnesota · implied b. ~1909 — 4 household members
| Surname | Nelson |
| Given Name | Peter A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Cass |
| Occupation | Roadwork |
| Industry | Highway |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 236 |
| Highest Grade | H-4 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Peter Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Nelson (~0.92 confidence) and father Peter Nelson (~0.92 confidence) and mother Anna Nelson (~0.92 confidence) and mother Anna Nelson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Nelson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Peter Nelson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Anna Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Anna Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Peter Nelson
Head · 1940 · age 31 · b. ~1909 · Minnesota
★ 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 — Cass-County, Minnesota
Open full size
1940 US Federal Census — Cass-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01912-00360)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Arthur | 50 | Wife | — | Minnesota |
| 2 | Dorothy Arthur | 21 | Daughter | — | South Dakota |
| 3 | Cesar|Cesare Arthur | 18 | Son | Laborer | South Dakota |
| 4 | Betty J. Arthur | 11 | Daughter | — | South Dakota |
| 5 | Peter A. Nelson THIS PERSON | 31 | Head | Roadwork | Minnesota |
| 6 | Brutta Nelson | 31 | Wife | — | Minnesota |
| 7 | Donald Nelson | 8 | Son | — | Minnesota |
| 8 | Mervin Nelson | 5 | Son | — | Minnesota |
| 9 | Anna E. Lawrence | 55 | Head | Farmer | Minnesota |
| 10 | Alfred Lawrence | 22 | Son | Farmer | Minnesota |
| 11 | Joan Paul Lawrence | 26 | Nephew | — | Idaho |
| 12 | Peter A. Jewell | 39 | Head | Farmer | Minnesota |
| 13 | Viola Jewell | 38 | Wife | — | Iowa |
| 14 | Lena J. Jewell | 15 | Daughter | — | Minnesota |
| 15 | Anna L. Jewell | 53 | Mother | — | Nebraska |
| 16 | Helmer J. Hanson | 34 | Head | Farmer | South Dakota |
| 17 | Esther Hanson | 40 | Sister | — | South Dakota |
| 18 | Holger Pierson | 82 | Uncle | — | Minnesota |
| 19 | George O. Clark | 31 | Head | Farmer | Minnesota |
| 20 | Evelyn Clark | 25 | Wife | — | South Dakota |
| 21 | Sharon Clark | 5 | Daughter | — | Minnesota |
| 22 | Charles D. Holub | 48 | Head | Laborer | Minnesota |
| 23 | Clara Holub | 38 | Wife | — | Minnesota |
| 24 | Eleanora Holub | 19 | Daughter | — | Minnesota |
| 25 | Mildred Holub | 16 | Daughter | — | Minnesota |
| 26 | Arnold Holub | 15 | Son | — | Minnesota |
| 27 | Edgar Holub | 10 | Son | — | Minnesota |
| 28 | Doris Holub | 7 | Daughter | — | Minnesota |
| 29 | Allan Holub | 5 | Daughter | — | Minnesota |
| 30 | Charles Mccoy | 35 | Head | Farmer | Wisconsin |
| 31 | Esther Mccoy | 33 | Wife | — | Illinois |
| 32 | Harry Mccoy | 16 | Son | Farmer | Minnesota |
| 33 | Arthur Mccoy | 12 | Son | — | Minnesota |
| 34 | Douglas Mccoy | 11 | Son | — | Minnesota |
| 35 | West Mccoy | 8 | Son | — | Minnesota |
| 36 | Barney Mccoy | 6 | Son | — | Minnesota |
| 37 | Shirley Mccoy | 4 | Daughter | — | Minnesota |
| 38 | Edmund M. Granger | 59 | Head | Farmer | Minnesota |
| 39 | Gertrude Granger | 55 | Wife | — | Nebraska |
| 40 | Maurine Granger | 14 | Daughter | — | Minnesota |
Pedigree Summary
Peter
Gen 1 · 4 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)