PN
Paul Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Humboldt-County, Iowa
Our Model Tree links this Paul Nelson across the 1920, 1930 and 1940 US Censuses in Humboldt-County, Iowa (XGBoost, ~Confirmed), with identified parents Nels & Nels — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Humboldt-County, Iowa |
| Surname | Nelson |
| Given Name | Paul |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rutland |
| 1935 Residence (County) | Humboldt |
| Additional Details | |
| Occupation | Laborer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 600 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Rutland |
| Est. Birth Year | ~1917 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Paul | Age | Birth yr |
|---|---|---|---|---|
| Jennings Nelson | Son | — | 13 | ~1927 |
| Katie Nelson | Spouse | — | 52 | ~1888 |
| Ethel Nelson | Daughter | — | 21 | ~1919 |
| Paul Nelson | Son | — | 23 | ~1917 |
| Anker Nelson | Son | — | 17 | ~1923 |
Census Appearances
1920
Humboldt, Iowa
Son, age 3
Humboldt, Iowa · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nielson |
| Given Name | Paul |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Humboldt, Iowa
Son, age 13
Humboldt, Iowa · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Paul W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Humboldt-County, Iowa
Son, age 23
Humboldt-County, Iowa · implied b. ~1917 — 5 household members
| Surname | Nelson |
| Given Name | Paul |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Rutland |
| 1935 Residence (County) | Humboldt |
| Occupation | Laborer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 600 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Paul Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nels Nelson (~0.92 confidence) and father Nels Nielson (~0.92 confidence) and mother Katie Nelson (~0.92 confidence) and mother Katherine Nielson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nels Nelson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Nels Nielson
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Katie Nelson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Katherine Nielson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Paul Nelson
Son · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Jennings Nelson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Nelson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anker Nelson
Sibling · 1940 · age 17
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 — Humboldt-County, Iowa
Open full size
1940 US Federal Census — Humboldt-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01167-00655)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katie D Nelson | 52 | Wife | — | Denmark |
| 42 | Paul Nelson THIS PERSON | 23 | Son | Laborer | Iowa |
| 43 | Ethel M Nelson | 21 | Daughter | — | Iowa |
| 44 | Anker Nelson | 17 | Son | New Worker | Iowa |
| 45 | Jennings Nelson | 13 | Son | — | Iowa |
| 46 | Ray Davenport | 39 | Head | County Road Patrolman | Iowa |
| 47 | Mabel E Davenport | 36 | Wife | — | Iowa |
| 48 | Phyllis Davenport | 15 | Daughter | — | Iowa |
| 49 | Rodger Davenport | 12 | Son | — | Iowa |
| 50 | Gordon Erickson | 31 | Head | Farmer | Iowa |
| 51 | Anna Erickson | 24 | Wife | — | Iowa |
| 52 | Darwin Erickson | 3 | Son | — | Iowa |
| 53 | Gerald K Erickson | 0 | Son | — | Iowa |
| 54 | Lester Egly | 24 | Hired Man | Laborer | Iowa |
| 55 | Edwin F Nelson | 37 | Head | Proprietor | Iowa |
| 56 | Doris Nelson | 35 | Wife | — | Iowa |
| 57 | Jack Nelson | 9 | Son | — | Iowa |
| 58 | Jerry Nelson | 6 | Son | — | Iowa |
| 59 | Jon Nelson | 2 | Son | — | Iowa |
| 60 | Frank Kearmouth | 68 | Father-in-law | Clerk | Iowa |
| 61 | Harvey D Jergens | 27 | Head | Janitor | Iowa |
| 62 | Earlene Jergens | 29 | Wife | — | Iowa |
| 63 | Betty Rae Jergens | 10 | Daughter | — | Iowa |
| 64 | Harvey Jergens | 4 | Son | — | Iowa |
| 65 | Geo A Mecklenburg | 30 | Head | Superintendent | Iowa |
| 66 | Martha D Mecklenburg | 31 | Wife | — | Iowa |
| 67 | Marlyn Mecklenburg | 8 | Daughter | — | Iowa |
| 68 | Clifford Mecklenburg | 3 | Son | — | Iowa |
| 69 | Paul Thom | 37 | Head | Truck Driver | Iowa |
| 70 | Mable Thom | 32 | Wife | — | Iowa |
| 71 | Marian Thom | 14 | Daughter | — | Iowa |
| 72 | Mildred Thom | 12 | Daughter | — | Iowa |
| 73 | Violet Thom | 9 | Daughter | — | Iowa |
| 74 | Robert Thom | 7 | Son | — | Iowa |
| 75 | Mary Lee Thom | 4 | Daughter | — | Iowa |
| 76 | Roger Thom | 3 | Son | — | Iowa |
| 77 | Melvin D Thom | 1 | Son | — | Iowa |
| 78 | Chas Williams | 45 | Head | Proprietor | Kansas |
| 79 | Lucy D Williams | 31 | Wife | — | Iowa |
| 80 | Margaret Williams | 11 | Daughter | — | Idaho |
Pedigree Summary
Paul + 3 siblings
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)