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Ira Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Illinois
Our Model Tree links this Ira Johnson across the 1930 and 1940 US Censuses in Lawrence-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 10-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Illinois |
| Surname | Johnson |
| Given Name | Ira |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Bridgeport City |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Private |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 240 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Mechanic |
| Township / Ward | Bridgeport City |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ira | Age | Birth yr |
|---|---|---|---|---|
| Newton Johnson | Son | — | 14 | ~1926 |
| Ruby Preston | Daughter | — | 32 | ~1908 |
| Anna Johnson | Spouse | — | 51 | ~1889 |
| Lloyd Johnson | Son | — | 24 | ~1916 |
| Julia Johnson | Daughter | — | 21 | ~1919 |
| Paul Preston | Other | — | 12 | ~1928 |
| Eugene Johnson | Son | — | 18 | ~1922 |
| Eula Johnson | Daughter | — | 16 | ~1924 |
| Newton Johnson | Head | — | 52 | ~1888 |
| Ira Johnson | Son | — | 26 | ~1914 |
Census Appearances
1930
Lawrence, Illinois
Son, age 16
Lawrence, Illinois · implied b. ~1914 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ira |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lawrence-County, Illinois
Son, age 26
Lawrence-County, Illinois · implied b. ~1914 — 10 household members
| Surname | Johnson |
| Given Name | Ira |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Bridgeport City |
| 1935 Residence (County) | Lawrence |
| Occupation | Mechanic |
| Industry | Private |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 240 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| 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 Ira Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ira Johnson
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Lloyd Johnson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Newton Johnson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eula Johnson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Preston
Sibling · 1940 · age 32
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 — Lawrence-County, Illinois
Open full size
1940 US Federal Census — Lawrence-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00835-00103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marjorie Beasley | 11 | daughter | — | Illinois |
| 2 | Donald Beasley | 9 | son | — | Illinois |
| 3 | John M Beasley | 7 | son | — | Illinois |
| 4 | Lois Beasley | 5 | daughter | — | Illinois |
| 5 | Lillian Beasley | 2 | daughter | — | Illinois |
| 6 | Cecelia O Griggs | 48 | Head | Clerk | Illinois |
| 7 | Mary Elizabeth Griggs | 26 | daughter | Typist | Illinois |
| 8 | Emma Jeanne Griggs | 20 | daughter | Office Ass'T. | Illinois |
| 9 | Wilma Bramel | 19 | daughter | Cashier | Kansas |
| 10 | Robert Meek | 36 | Head | Teacher | Illinois |
| 11 | Harriet Meek | 35 | Wife | Teacher | Illinois |
| 12 | Martha Mae Meek | 14 | daughter | — | Illinois |
| 13 | Robert Newell Meek | 13 | son | — | Illinois |
| 14 | Ellis Senters | 32 | Head | Brakeman | Illinois |
| 15 | Helen Senters | 33 | Wife | Housewife | Illinois |
| 16 | Ronald Lee Senters | 2 | son | — | Illinois |
| 17 | Donald Runyon | 46 | Head | Machine Work | Illinois |
| 18 | Clara O Runyon | 46 | Wife | Housewife | Illinois |
| 19 | Betty Runyon | 21 | daughter | Typist | Illinois |
| 20 | Robert Runyon | 20 | son | Office | Illinois |
| 21 | Harold Runyon | 14 | son | — | Illinois |
| 22 | Wilbur Runyon | 12 | son | — | Illinois |
| 23 | Patty Runyon | 7 | daughter | — | Illinois |
| 24 | Hardy Newell | 59 | Head | Machinist | Illinois |
| 25 | Mollie O Newell | 54 | Wife | Housewife | Illinois |
| 26 | Albert Newell | 35 | son | Operator | Illinois |
| 27 | William Newell | 32 | son | Operator | Illinois |
| 28 | Charles Kane | 65 | Head | Engineer | Pennsylvania |
| 29 | Elsa A Kane | 57 | Wife | Housewife | Ohio |
| 30 | Florence Lou Kane | 29 | daughter | Housewife | Ohio |
| 31 | Newton Johnson | 52 | Head | Barber | Illinois |
| 32 | Anna Johnson | 51 | Wife | Housewife | Illinois |
| 33 | Ruby Preston | 32 | daughter | Factory | Illinois |
| 34 | Ira Johnson THIS PERSON | 26 | son | Mechanic | Illinois |
| 35 | Lloyd Johnson | 24 | son | Housework | Illinois |
| 36 | Julia Johnson | 21 | daughter | School | Illinois |
| 37 | Eugene Johnson | 18 | son | School | Illinois |
| 38 | Eula Johnson | 16 | daughter | School | Illinois |
| 39 | Newton Johnson | 14 | son | School | Illinois |
| 40 | Paul R Preston | 12 | grandson | — | Illinois |
Related Census Records
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)