TJ
Theodore Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Theodore Johnson across the 1900, 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Alfred & Amelia — first a son (b.~1896), then head of a 5-person household.
Age 34
b. ~1896
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Laborer |
| Industry | Ice Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1896 |
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 1930 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Ellen Johnson | Daughter | — | 37 | ~1893 |
| Amelia Johnson | Head | — | 58 | ~1872 |
| Albert Johnson | Son | — | 30 | ~1900 |
| Theodore Johnson | Son | — | 34 | ~1896 |
| Oscar Johnson | Son | — | 28 | ~1902 |
Census Appearances
1900
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Birth Month | Mar |
| Birth Year | 1896 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Son, age 24
Cook, Illinois · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Machinist |
| Industry | Automobile Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 34
Cook, Illinois · implied b. ~1896 — 5 household members
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Ice Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Theodore Johnson across 4 US Census years (1900, 1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Alfred Johnson (~0.92 confidence) and mother Amelia Johnson (~0.92 confidence) and mother Amelia Johnson (~0.92 confidence) and father Emery Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Johnson
b. ~1849
Source father
● Household
· direct · ~0.92
Mother
Amelia Johnson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Amelia Johnson
b. ~1872
Source mother
● Household
· direct · ~0.92
Father
Emery Johnson
b. ~1872
Source father
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Son · 1930 · age 34 · b. ~1896 · Illinois
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Sibling
Albert Johnson
Sibling · 1930 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oscar Johnson
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Johnson
Sibling · 1930 · age 37
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
39 people indexed on this census page (ia:1930:illinoiscensus00reel488:0101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John M Ac | 8 | Head | — | Roumania |
| 2 | Henry A Ac | 5 | Son | — | Roumania |
| 3 | James V Lauenburg | 52 | Head | Laborer | Illinois |
| 4 | Anna M Lauenburg | 56 | Wife | — | Sweden |
| 5 | Christian F Lauenburg | 18 | Son | — | Illinois |
| 6 | Ka Anna Zerebes | 39 | Roomer | Salty Worker | Poland |
| 7 | Byron E Carruthers | 61 | Head | Laborer | Iowa |
| 8 | Nettie J Carruthers | 55 | Wife | — | Iowa |
| 9 | Le Roy Carruthers | 22 | Son | Laborer | Iowa |
| 10 | Bernice Carruthers | 20 | Daughter | — | Iowa |
| 11 | Iona E Carruthers | 17 | Daughter | — | Iowa |
| 12 | Arnold F Carruthers | 14 | Son | — | Iowa |
| 13 | Helen L Carruthers | 13 | Daughter | — | Iowa |
| 14 | Thomas H Clark | 36 | Head | Chauffeur | Illinois |
| 15 | Blanche F Clark | 38 | Wife | — | Indiana |
| 16 | Blair De Witt | 52 | Head | — | Ohio |
| 17 | Albert E De Witt | 30 | Son | Lawyer | Illinois |
| 18 | Marguerite De Witt | 21 | Daughter | Operator | Illinois |
| 19 | Mary Farnell | 63 | Head | — | Sweden |
| 20 | Hedvig Farnell | 23 | Nephew | Laborer | Sweden |
| 21 | Nels H Nelson | 25 | Roomer | Mechanic | Sweden |
| 22 | Curtis H Glasscock | 30 | Head | Laborer | Indiana |
| 23 | Cassie E Glasscock | 28 | Wife | — | Indiana |
| 24 | Kathryn Glasscock | 11 | Daughter | — | Indiana |
| 25 | Vera M Glasscock | 10 | Daughter | — | Indiana |
| 26 | Marguerite Glasscock | 8 | Daughter | — | Indiana |
| 27 | Sylvia L Glasscock | 5 | Daughter | — | Indiana |
| 28 | La Verne M Glasscock | 2 | Daughter | — | Indiana |
| 29 | Amelia Johnson | 58 | Head | — | Sweden |
| 30 | Ellen Johnson | 37 | Daughter | Saleslady | Illinois |
| 31 | Theodore Johnson THIS PERSON | 34 | Son | Laborer | Illinois |
| 32 | Albert W Johnson | 30 | Son | Laborer | Illinois |
| 33 | Oscar W Johnson | 28 | Son | Salesman | Illinois |
| 34 | Alveda Johanson | 64 | Head | — | Sweden |
| 35 | Florence B Johanson | 28 | Daughter | Clerk | Illinois |
| 36 | Theodore F Johanson | 26 | Son | Painter | Illinois |
| 37 | Thomas Kennedy | 9 | Grandson | — | Illinois |
| 38 | Mary M Hune | 69 | Head | — | Scotland |
| 39 | Mary M Hune | 33 | Daughter | Clerk | Illinois |
Related Census Records
Pedigree Summary
Theodore + 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 1930 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)