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 Christina & Christina — first a son (b.~1907), then head of a 2-person household.
Age 33
b. ~1907
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Wholesale |
| Industry | Wholesale |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 390 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Wholesale |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1907 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Christina Johnson | Head | — | 74 | ~1866 |
| Theodore Johnson | Son | — | 33 | ~1907 |
Census Appearances
1910
Ramsey, Minnesota
Son, age 3
Ramsey, Minnesota · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| 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
Son, age 13
Ramsey, Minnesota · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Son, age 23
Ramsey, Minnesota · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Plumber |
| Industry | Plumbing Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Son, age 33
Ramsey-County, Minnesota · implied b. ~1907 — 2 household members
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Occupation | Wholesale |
| Industry | Wholesale |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 390 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 Christina Johnson (~0.92 confidence) and mother Christina Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Christine Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Christina Johnson
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Christina Johnson
b. ~1866
Source mother
● Household
· direct · ~0.92
Father
John Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Christine Johnson
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
John Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Son · 1940 · age 33 · b. ~1907 · 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-t0627-01994-00476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hulda Mullen | 40 | Wife | — | Wisconsin |
| 2 | Margaret Jane Mullen | 1 | Daughter | — | Minnesota |
| 3 | Christina Johnson | 74 | Head | — | Sweden |
| 4 | Theodore Johnson THIS PERSON | 33 | Son | Wholesale | Minnesota |
| 5 | Sherman Tiety | 36 | Head | Truck Driver | Wisconsin |
| 6 | Margaret Tiety | 30 | Wife | — | Wisconsin |
| 7 | Charles Tiety | 10 | Son | — | Minnesota |
| 8 | Raymond Tiety | 8 | Son | — | Minnesota |
| 9 | Olaf A. Johnson | 54 | Head | Freight Handler | Minnesota |
| 10 | Nellie B. Johnson | 54 | Wife | — | Minnesota |
| 11 | Hazel Johnson | 27 | Daughter | File Clerk | Minnesota |
| 12 | Katherine Soderberg | 49 | Head | — | Minnesota |
| 13 | Mathilda Soderberg | 90 | Mother | — | Sweden |
| 14 | Johanna Jacobson | 80 | Head | — | Sweden |
| 15 | Wilhelmina Jacobson | 54 | Daughter | Comptometer Operator | Minnesota |
| 16 | Irene Hawkinson | 35 | Head | — | Minnesota |
| 17 | Beverly Hawkinson | 10 | Daughter | — | Michigan |
| 18 | Ronald Hawkinson | 4 | Son | — | Minnesota |
| 19 | Albena Bland | 59 | Mother | — | Massachusetts |
| 20 | John Nelson | 42 | Head | Laborer | North Dakota |
| 21 | Christine Nelson | 44 | Wife | — | North Dakota |
| 22 | Vernon Nelson | 22 | Son | Laborer | North Dakota |
| 23 | Dorothy Nelson | 18 | Daughter | Housework | North Dakota |
| 24 | Miland Nelson | 13 | Son | — | North Dakota |
| 25 | Clinton Nelson | 10 | Son | — | North Dakota |
| 26 | Lois Nelson | 8 | Daughter | — | North Dakota |
| 27 | Lola Nelson | 6 | Daughter | — | North Dakota |
| 28 | Anna Mclennan | 64 | Head | — | Sweden |
| 29 | Kenneth A. Mclennan | 24 | Son | Yard Clerk | Minnesota |
| 30 | Helen Elizabeth Mclennan | 19 | Daughter | — | Minnesota |
| 31 | Marlys Johnson | 39 | Head | Yard Man | Minnesota |
| 32 | Maude Johnson | 35 | Wife | — | Minnesota |
| 33 | Lorraine Munson | 17 | Step-daughter | — | Minnesota |
| 34 | Pearl Munson | 15 | Step-daughter | — | Minnesota |
| 35 | Dorothy Mcnally | 20 | Step-daughter | — | Minnesota |
| 36 | Judith Anne Mcnally | 1 | Step-granddaughter | — | Minnesota |
| 37 | Claus Benson | 57 | Head | Laborer | Sweden |
| 38 | Florence Benson | 49 | Wife | — | Minnesota |
| 39 | Ronald Benson | 14 | Son | — | Minnesota |
| 40 | Anna Mathison | 72 | Head | — | Norway |
Pedigree Summary
Theodore
Gen 1 · 5 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)