TJ
Theodore Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · St Louis, Minnesota
Our Model Tree links this Theodore Johnson across the 1910, 1920 and 1930 US Censuses in St Louis, Minnesota (XGBoost, ~Confirmed), with identified parents Edward & Hannah — first a head (b.~1898), then head of a 4-person household.
Age 32
b. ~1898
Male
Head
Born: Minnesota
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | St Louis, Minnesota |
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | South Dakota |
| Additional Details | |
| Occupation | Bus Driver |
| Industry | Transportation |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Bus Driver |
| Township / Ward | Hibbing Village |
| Est. Birth Year | ~1898 |
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 1930 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Theodore Johnson | Head | — | 32 | ~1898 |
| Clifford Johnson | Son | — | 1 | ~1929 |
| Theodore Johnson | Son | — | 6 | ~1924 |
| Mabel Johnson | Spouse | — | 27 | ~1903 |
Census Appearances
1910
St Louis, …
Son, age 11
St Louis, Minnesota · implied b. ~1899 — 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 | 11 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
St Louis, …
Son, age 22
St Louis, Minnesota · implied b. ~1898 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | North Dakota |
| Occupation | Engineer |
| Industry | Tractor Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
St Louis, …
Head, age 32
St Louis, Minnesota · implied b. ~1898 — 4 household members
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | South Dakota |
| Occupation | Bus Driver |
| Industry | Transportation |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 3 US Census years (1910, 1920 and 1930) in St Louis, Minnesota, using XGBoost record linkage. Identified parents: father Edward Johnson (~0.92 confidence) and mother Hannah Johnson (~0.92 confidence) and father Hilmer Johnson (~0.92 confidence) and mother Sophia Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Johnson
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Hannah Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Hilmer Johnson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Sophia Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Head · 1930 · age 32 · b. ~1898 · Minnesota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — St Louis, Minnesota
Open full size
1930 US Federal Census — St Louis, Minnesota
Page Contents
50 people indexed on this census page (ia:1930:minnesotacensus00reel1128:0308)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theodore Johnson THIS PERSON | 32 | Head | Bus Driver | Minnesota |
| 2 | Mabel Johnson | 27 | Wife | — | North Dakota |
| 3 | Theodore Jr. Johnson | 6 | Son | — | Minnesota |
| 4 | Clifford Johnson | 1 | Son | — | Minnesota |
| 5 | Axel P. Knudsen | 25 | Head | Bus Driver | Denmark |
| 6 | Ruth H. Knudsen | 20 | Wife | — | Norway |
| 7 | Patrick A. Flynn | 40 | Head | Truck Driver | North Dakota |
| 8 | Mary R. Flynn | 33 | Wife | — | Kansas |
| 9 | Mary L. Flynn | 15 | Daughter | — | Minnesota |
| 10 | Edward J. Flynn | 11 | Son | — | North Dakota |
| 11 | John M. Flynn | 10 | Son | — | Minnesota |
| 12 | Patrick M. Flynn | 6 | Son | — | Minnesota |
| 13 | Joseph Flynn | 3 | Son | — | Minnesota |
| 14 | George S. Hoy | 57 | Head | Carpenter | Canada-Eng |
| 15 | Emma Hoy | 49 | Wife | — | Canada-Eng |
| 16 | Mabel Hoy | 22 | Daughter | — | Minnesota |
| 17 | Clara Hoy | 15 | Daughter | Stenographer | Minnesota |
| 18 | John M. Douglas | 41 | Head | — | Canada-Eng |
| 19 | Eva A. Douglas | 39 | Wife | Laborer | North Dakota |
| 20 | Margaret Douglas | 16 | Daughter | — | Minnesota |
| 21 | John M. Douglas | 13 | Son | — | Minnesota |
| 22 | Sanford Douglas | 13 | Son | — | Minnesota |
| 23 | James Douglas | 3 | Son | — | Minnesota |
| 24 | Joseph W. Kauffman | 49 | Head | Truck Driver | Minnesota |
| 25 | Irene Kauffman | 44 | Wife | — | New York |
| 26 | Gordon Kauffman | 21 | Son | Bell Boy | Minnesota |
| 27 | Alvin Kauffman | 19 | Son | — | Minnesota |
| 28 | Doris Kauffman | 7 | Daughter | — | Minnesota |
| 29 | Frank W. Lindgren | 54 | Head | Laborer | Finland |
| 30 | Hilda Lindgren | 43 | Wife | — | Finland |
| 31 | Martha Lindgren | 15 | Daughter | — | Minnesota |
| 32 | Ella E. Lindgren | 14 | Daughter | — | Minnesota |
| 33 | Frank W. Lindgren | 13 | Son | — | Minnesota |
| 34 | Joseph Roman | 70 | Lodger | — | Wisconsin |
| 35 | Lester H. Monroe | 26 | Head | Truck Driver | Wisconsin |
| 36 | Stella Monroe | 29 | Wife | Cook | North Dakota |
| 37 | Margaret Monroe | 10 | Daughter | — | Minnesota |
| 38 | Richard M. Emmerson | 27 | Head | Mechanic | Minnesota |
| 39 | Clara M. Emmerson | 27 | Wife | — | Minnesota |
| 40 | Vernon G. Emmerson | 4 | Son | — | Minnesota |
| 41 | John S. Boria | 35 | Head | Salesman | Michigan |
| 42 | Eveline Boria | 31 | Wife | — | Wisconsin |
| 43 | Patricia Boria | 4 | Daughter | — | Michigan |
| 44 | James R. Boria | 3 | Son | — | Michigan |
| 45 | Charles E. Boria | 1 | Son | — | Michigan |
| 46 | James M. Johnson | 32 | Head | Clerk | Minnesota |
| 47 | Patricia Johnson | 30 | Wife | — | Montana |
| 48 | Patricia Johnson | 5 | Daughter | — | Minnesota |
| 49 | Kathleen Johnson | 4 | Daughter | — | Minnesota |
| 50 | Albert Hansen | 40 | Head | Carpenter | Denmark |
Pedigree Summary
Theodore
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)