MJ
Marvin Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ford-County, Illinois
Our Model Tree links this Marvin Johnson across the 1920, 1930 and 1940 US Censuses in Ford-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ford-County, Illinois |
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Button Township |
| 1935 Residence (County) | Ford |
| Additional Details | |
| Occupation | Farm Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 750 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm Hand |
| Township / Ward | Button Township |
| Est. Birth Year | ~1914 |
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 Marvin | Age | Birth yr |
|---|---|---|---|---|
| Marian Johnson | Daughter | — | 27 | ~1913 |
| Huldah Johnson | Spouse | — | 58 | ~1882 |
| Marvin Johnson | Son | — | 26 | ~1914 |
| John Johnson | Head | — | 63 | ~1877 |
Census Appearances
1920
Ford, Illinois
Son, age 6
Ford, Illinois · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Ford, Illinois
Son, age 16
Ford, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Ford-County, Illinois
Son, age 26
Ford-County, Illinois · implied b. ~1914 — 4 household members
| Surname | Johnson |
| Given Name | Marvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Button Township |
| 1935 Residence (County) | Ford |
| Occupation | Farm Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 750 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Marvin Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Huldah Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Huldah Johnson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marvin Johnson
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Marian Johnson
Sibling · 1940 · age 27
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 — Ford-County, Illinois
Open full size
1940 US Federal Census — Ford-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00802-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Laura E. Adkins | 53 | Wife | Housewife | Kentucky |
| 42 | Elijah J. Adkins | 22 | Son | Farmer | Illinois |
| 43 | Josephine Adkins | 18 | Daughter | Housewife | Illinois |
| 44 | Barbara E. Adkins | 15 | Daughter | — | Illinois |
| 45 | John B. Adkins | 14 | Son | — | Illinois |
| 46 | Pelican D. Mabry | 19 | Daughter | Housework | Illinois |
| 47 | Clarence E. Armstrong | 37 | Head | Farmer | Illinois |
| 48 | Anna G. Armstrong | 41 | Wife | — | Illinois |
| 49 | Richard Armstrong | 1 | Son | — | Illinois |
| 50 | Arthur W. Sandquist | 43 | Head | Farmer | Illinois |
| 51 | Clara Belle Sandquist | 45 | Wife | Housewife | Oregon |
| 52 | James A. Jacobs | 71 | Head | Farmer | Indiana |
| 53 | Mary E. Jacobs | 72 | Wife | Housewife | Illinois |
| 54 | Francis R. West | 30 | Head | Farmer | Illinois |
| 55 | Viola M. West | 34 | Wife | Housewife | Illinois |
| 56 | Sidney H. Elofson | 32 | Head | Farm Mgr. | Illinois |
| 57 | Cleo Elofson | 30 | Wife | Housewife | Illinois |
| 58 | John Sidney Elofson | 7 | Son | — | Illinois |
| 59 | Howard Bowen | 29 | Head | Farmer | Kentucky |
| 60 | Regina Bowen | 31 | Wife | Housewife | Illinois |
| 61 | Philip Eugene Bowen | 4 | Son | — | Illinois |
| 62 | Elizabeth Bowen | 1 | Daughter | — | Illinois |
| 63 | O. H. Schwendeman | None | — | — | Illinois |
| 64 | Error In Recording Def. Name On Another Sheet. Schwendeman | None | — | — | — |
| 65 | Not A Home At Last Visitation. Schwendeman | None | — | — | — |
| 66 | Leonard Orr | 55 | Head | Farmer | Illinois |
| 67 | Florence Orr | 52 | Wife | Housewife | Illinois |
| 68 | John A. Johnson | 63 | Head | Farmer | Illinois |
| 69 | Huldah J. Johnson | 58 | Wife | Housewife | Indiana |
| 70 | Marian Johnson | 27 | Daughter | School Teacher | Illinois |
| 71 | Marvin Johnson THIS PERSON | 26 | Son | Farm Hand | Illinois |
| 72 | Lee R. Carlson | 22 | Head | Farmer | Illinois |
| 73 | Myrtle Shayer | 62 | Housekeeper | Housekeeper | Illinois |
| 74 | Ray Bowen | 36 | Head | Farmer | Kentucky |
| 75 | Mae A. Bowen | 35 | Wife | Housewife | Illinois |
| 76 | William D. Stone | 36 | Head | Farm Hand | Kentucky |
| 77 | Ellen Stone | 25 | Wife | Housewife | Indiana |
| 78 | Dorothy Stone | 9 | Daughter | — | Illinois |
| 79 | Violet Stone | 3 | Daughter | — | Illinois |
| 80 | Bernard L. Johnson | 32 | Head | Farm Laborer | Illinois |
Pedigree Summary
Marvin + 1 sibling
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)