TJ
Theodore Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Theodore Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Hanna & Andrew — first a head (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Johnson |
| Given Name | Theodore N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Bookkeeping |
| Industry | Rail Road |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Bookkeeping |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1894 |
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 Theodore | Age | Birth yr |
|---|---|---|---|---|
| Theodore Johnson | Head | — | 46 | ~1894 |
| Harold Johnson | Son | — | 20 | ~1920 |
| Helmer Johnson | Son | — | 13 | ~1927 |
| Hildur Johnson | Spouse | — | 46 | ~1894 |
Census Appearances
1910
Ramsey, Minnesota
Son, age 16
Ramsey, Minnesota · implied b. ~1894 — 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 | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Swed Swedish |
| Mother's Birthplace | Swed Swedish |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Ramsey, Minnesota
Head, age 25
Ramsey, Minnesota · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerk |
| Industry | Railroad Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Head, age 36
Ramsey, Minnesota · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore N |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | keeper |
| Industry | steam railway office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6500 |
| Veteran | Yes WW |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Head, age 46
Ramsey-County, Minnesota · implied b. ~1894 — 4 household members
| Surname | Johnson |
| Given Name | Theodore N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Occupation | Bookkeeping |
| Industry | Rail Road |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Hanna Johnson (~0.92 confidence) and father Andrew Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Hanna Johnson
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Andrew Johnson
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Head · 1940 · age 46 · b. ~1894 · Minnesota
★ 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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02003-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Howard Forseth | 52 | Head | Salesman | Minnesota |
| 2 | Florence Forseth | 52 | Wife | — | Minnesota |
| 3 | Albert Ericson | 45 | Head | Installer | Minnesota |
| 4 | Astrid Ericson | 45 | Wife | — | Minnesota |
| 5 | Roger Ericson | 21 | Son | — | Minnesota |
| 6 | Russell Hanson | 34 | Head | Patrolman | Wisconsin |
| 7 | Olive Hanson | 42 | Wife | — | Minnesota |
| 8 | Richard Hanson | 7 | Son | — | Minnesota |
| 9 | Olga C. Grant | 38 | Sister-in-law | Typist | Wisconsin |
| 10 | Theodore N. Johnson THIS PERSON | 46 | Head | Bookkeeping | Minnesota |
| 11 | Hildur Johnson | 46 | Wife | — | Illinois |
| 12 | Harold Johnson | 20 | Son | — | Minnesota |
| 13 | Helmer Johnson | 13 | Son | — | Minnesota |
| 14 | Vern Leo | 60 | Head | Bookkeeper | Minnesota |
| 15 | Alvina Leo | 55 | Wife | — | Wisconsin |
| 16 | Richard Leo | 17 | Son | — | Minnesota |
| 17 | Ottilde Lint | 76 | Head | — | Germany |
| 18 | Ervin Lint | 40 | Son | Machinist | Minnesota |
| 19 | Herbert Lint | 40 | Son | Machinist | Minnesota |
| 20 | Till Kjelsen | 54 | Head | — | Norway |
| 21 | Curtis Kjelsen | 31 | Son | Laborer | Minnesota |
| 22 | Chelsie Borgerson | 33 | Daughter | — | Illinois |
| 23 | Ida Green | 50 | Sister | — | Wisconsin |
| 24 | Ray Miller | 25 | Lodger | Time Clerk | Minnesota |
| 25 | Signa Martinson | 22 | Lodger | — | S. Dakota |
| 26 | Ora Bates | 61 | Head | Electrician | Minnesota |
| 27 | George Bates | 20 | Son | Order Clerk | Minnesota |
| 28 | Ted Bates | 19 | Son | — | Minnesota |
| 29 | Louis W. Francis | 64 | Head | Brakeman | Minnesota |
| 30 | Peter A. Francis | 39 | Son | Service Man | Minnesota |
| 31 | Ambrose M. Francis | 37 | Son | Assembly Man | Minnesota |
| 32 | Stephen P. Francis | 36 | Son | Bakeman | Minnesota |
| 33 | Margaret F. Francis | 31 | Daughter | — | Minnesota |
| 34 | John Klein | 50 | Head | Engineer | Minnesota |
| 35 | Lucia Klein | 50 | Wife | — | Minnesota |
| 36 | John L. Purnell | 52 | Head | Conductor | Minnesota |
| 37 | Dora C. Purnell | 52 | Wife | — | Minnesota |
| 38 | Joseph Hanratty | 52 | Head | Sales Manager | Minnesota |
| 39 | Leona Hanratty | 44 | Wife | — | Wisconsin |
| 40 | Patricia Hanratty | 17 | Daughter | — | Minnesota |
Pedigree Summary
Theodore
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)