MJ
Martin Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, Nebraska
Our Model Tree links this Martin Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Lancaster-County, Nebraska (XGBoost, ~Confirmed), with identified parents Nels & Hattie — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Nebraska |
| Surname | Johnson |
| Given Name | Martin E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Rock Creek Township |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 8 |
| 1935 Residence | Same house |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Farmer |
| Township / Ward | Rock Creek Township |
| Est. Birth Year | ~1900 |
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 Martin | Age | Birth yr |
|---|---|---|---|---|
| Martin Johnson | Head | — | 40 | ~1900 |
| Richard Johnson | Son | — | 11 | ~1929 |
| Jack Johnson | Son | — | 1 | ~1939 |
| Jenella Johnson | Spouse | — | 35 | ~1905 |
Census Appearances
1910
Lancaster, Nebraska
Son, age 10
Lancaster, Nebraska · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martin E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1920
Lancaster, Nebraska
Son, age 19
Lancaster, Nebraska · implied b. ~1901 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Martin E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farm laborer |
| Industry | Home farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Lancaster, Nebraska
Head, age 30
Lancaster, Nebraska · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marlin E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 27 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General farm |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Lancaster-County, Nebraska
Head, age 40
Lancaster-County, Nebraska · implied b. ~1900 — 4 household members
| Surname | Johnson |
| Given Name | Martin E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Rock Creek Township |
| 1935 Residence (County) | Lancaster |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 8 |
| 1935 Residence | Same house |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Nels Johnson (~0.92 confidence) and mother Hattie Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Nels Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Hattie Johnson
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martin Johnson
Head · 1940 · age 40 · b. ~1900 · Nebraska
★ 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 — Lancaster-County, Nebraska
Open full size
1940 US Federal Census — Lancaster-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02255-00723)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leslie Johnson | 52 | Wife | — | Nebraska |
| 42 | Wilma Johnson | 17 | Daughter | — | Nebraska |
| 43 | Roy E. Nelson | 32 | Head | Farmer | Nebraska |
| 44 | Anna B. Nelson | 27 | Wife | — | Nebraska |
| 45 | Roy E. Jr. Nelson | 1 | Son | — | Nebraska |
| 46 | Mervin E. Hansen | 64 | Head | Farmer | Denmark |
| 47 | Emma H. Hansen | 61 | Wife | — | Nebraska |
| 48 | Theodore J. Hansen | 19 | Son | — | Nebraska |
| 49 | Richard Hanson | 44 | Head | Farmer | Nebraska |
| 50 | Valborg Hanson | 38 | Wife | — | Nebraska |
| 51 | Martin E. Johnson THIS PERSON | 40 | Head | Farmer | Nebraska |
| 52 | Jenella Johnson | 35 | Wife | — | Nebraska |
| 53 | Richard Johnson | 11 | Son | — | Nebraska |
| 54 | Jack Johnson | 1 | Son | — | Nebraska |
| 55 | Nels A. Johnston | 65 | Head | Farmer | Illinois |
| 56 | Hattie C. Johnston | 65 | Wife | — | Illinois |
| 57 | Albin E. Knudsen | 35 | Head | Farmer | Nebraska |
| 58 | Annie E. Knudsen | 33 | Wife | — | Sweden |
| 59 | Herbert L. Knudsen | 15 | Son | — | Nebraska |
| 60 | Betty Ann Knudsen | 14 | Daughter | — | Nebraska |
| 61 | Willard L. Knudsen | 7 | Son | — | Nebraska |
| 62 | Yvonne H. Knudsen | 3 | Daughter | — | Nebraska |
| 63 | Charles Olson | 68 | Head | Farmer | Sweden |
| 64 | Carrie Olson | 69 | Wife | — | Norway |
| 65 | Richard W. Peterson | 44 | Head | Farmer | Nebraska |
| 66 | Irene C. Peterson | 36 | Wife | — | Nebraska |
| 67 | Ardie E. Peterson | 16 | Daughter | — | Nebraska |
| 68 | Maxine U. Peterson | 15 | Daughter | — | Nebraska |
| 69 | Delores E. Peterson | 12 | Daughter | — | Nebraska |
| 70 | Carol Jean Peterson | 8 | Daughter | — | Nebraska |
| 71 | Donna Lee Peterson | 1 | Daughter | — | Nebraska |
| 72 | Harry R. Hansen | 44 | Head | Farmer | Nebraska |
| 73 | Ester M. Hansen | 46 | Wife | — | Nebraska |
| 74 | Thelma Hansen | 20 | Daughter | Housework | Nebraska |
| 75 | Marvin Hansen | 19 | Son | Laborer | Nebraska |
| 76 | Arlie Dale Hansen | 15 | Son | — | Nebraska |
| 77 | Merva Lee Hansen | 8 | Daughter | — | Nebraska |
| 78 | Swan Swanson | 86 | Head | — | Sweden |
| 79 | Julia Swanson | 52 | Daughter | — | Illinois |
| 80 | John Johnston | 46 | Head | Farmer | Nebraska |
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)