MN
Martin Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lasalle-County, Illinois
Our Model Tree links this Martin Nelson across the 1910, 1920, 1930 and 1940 US Censuses in Lasalle-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Hulda — first a head (b.~1886), then head of a 3-person household.
Age 54
b. ~1886
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lasalle-County, Illinois |
| Surname | Nelson |
| Given Name | Martin O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Eden Twp. |
| 1935 Residence (County) | La Salle |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farm Operator |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Farm Operator |
| Township / Ward | Eden Twp |
| Est. Birth Year | ~1886 |
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 Martin | Age | Birth yr |
|---|---|---|---|---|
| Alma Nelson | Spouse | — | 50 | ~1890 |
| Merlin Nelson | Son | — | 9 | ~1931 |
| Martin Nelson | Head | — | 54 | ~1886 |
Census Appearances
1910
Henry, Illinois
Son, age 23
Henry, Illinois · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Martin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1903 |
| Naturalization Status | Alien |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Steel works |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1920
Putnam, Illinois
Head, age 34
Putnam, Illinois · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Martin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1904 |
| Naturalization Status | Alien |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
La Salle, …
Head, age 44
La Salle, Illinois · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Martin |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | First papers filed |
| Year of Immigration | 1904 |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Lasalle-County, Illinois
Head, age 54
Lasalle-County, Illinois · implied b. ~1886 — 3 household members
| Surname | Nelson |
| Given Name | Martin O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Eden Twp. |
| 1935 Residence (County) | La Salle |
| Naturalization Status | Naturalized |
| Occupation | Farm Operator |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Martin Nelson across 4 US Census years (1910, 1920, 1930 and 1940) in 4 locations, using XGBoost record linkage. Identified parents: father James Nelson (~0.92 confidence) and mother Hulda Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Nelson
b. ~1855
Source father
● Household
· direct · ~0.92
Mother
Hulda Nelson
b. ~1857
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martin Nelson
Head · 1940 · age 54 · b. ~1886 · Illinois
★ 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 — Lasalle-County, Illinois
Open full size
1940 US Federal Census — Lasalle-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00832-00716)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward S. Shawback | 42 | Head | Farm Operator | Illinois |
| 2 | Marie Shawback | 36 | Wife | — | Illinois |
| 3 | Beverly Shawback | 13 | Daughter | — | Illinois |
| 4 | Janet Shawback | 12 | Son | — | Illinois |
| 5 | Frank Barrett | 48 | Head | Farm Operator | Illinois |
| 6 | Irene S. Barrett | 47 | Wife | — | Illinois |
| 7 | Coleman Barrett | 14 | Son | — | Illinois |
| 8 | Kenneth Barrett | 12 | Son | — | Illinois |
| 9 | Robert Barrett | 10 | Son | — | Illinois |
| 10 | Gloria Barrett | 8 | Daughter | — | Illinois |
| 11 | William J. Ploch | 59 | Head | Farm Operator | Illinois |
| 12 | Tillie Ploch | 56 | Wife | — | Illinois |
| 13 | Edwin Ploch | 24 | Son | Farm Helper | Illinois |
| 14 | Bernice Ploch | 22 | Daughter-in-law | — | Illinois |
| 15 | Martin O. Nelson THIS PERSON | 54 | Head | Farm Operator | Sweden |
| 16 | Alma Nelson | 50 | Wife | — | Sweden |
| 17 | Merlin Nelson | 9 | Son | — | Illinois |
| 18 | George S. Votolly | 87 | Head | — | Illinois |
| 19 | Ida Votolly | 70 | Wife | — | Illinois |
| 20 | Fred O. Votolly | 56 | Head | Farm Operator | Illinois |
| 21 | Maud Votolly | 52 | Wife | — | Illinois |
| 22 | Tom O. Simms | 38 | Head | Farm Operator | Illinois |
| 23 | Ruby Simms | 36 | Wife | — | Illinois |
| 24 | Marilyn Simms | 10 | Daughter | — | Illinois |
| 25 | Donette Simms | 5 | Daughter | — | Illinois |
| 26 | Fred O. Grant | 51 | Head | Farm Operator | Illinois |
| 27 | Emma Grant | 44 | Wife | — | Illinois |
| 28 | Harold Grant | 24 | Son | Farm Helper | Illinois |
| 29 | Helen Grant | 19 | Daughter | — | Illinois |
| 30 | Louis O. Frederick | 62 | Head | Farm Operator | Illinois |
| 31 | Amelia Frederick | 62 | Wife | — | Illinois |
| 32 | Carl Frederick | 35 | Son | Farm Operator | Illinois |
| 33 | Rose Frederick | 29 | Daughter-in-law | — | Illinois |
| 34 | Marjorie Frederick | 3 | Granddaughter | — | Illinois |
| 35 | John Frederick | 66 | Brother | Farm Helper | Illinois |
| 36 | Ira O. Grant | 43 | Head | Farm Operator | Illinois |
| 37 | Mabel Grant | 43 | Wife | — | Illinois |
| 38 | Ilene Grant | 21 | Daughter | Beauty Operator | Illinois |
| 39 | Irene Grant | 21 | Daughter | Beauty Operator | Illinois |
| 40 | Charles O. Goodwin | 51 | Head | Farm Operator | Illinois |
Pedigree Summary
Martin
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)