TJ
Theodore Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chisago-County, Minnesota
Our Model Tree links this Theodore Johnson across the 1920, 1930 and 1940 US Censuses in Chisago-County, Minnesota (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chisago-County, Minnesota |
| Surname | Johnson |
| Given Name | Theodore C. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Branch twp |
| 1935 Residence (County) | Chisago |
| Additional Details | |
| Occupation | chemist |
| Industry | NYH laboratory |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 220 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Chemist |
| Township / Ward | Branch Twp |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Verna Johnson | Daughter | — | 15 | ~1925 |
| Charles Johnson | Head | — | 70 | ~1870 |
| George Johnson | Son | — | 20 | ~1920 |
| Theodore Johnson | Son | — | 24 | ~1916 |
| Vernon Johnson | Son | — | 15 | ~1925 |
| Selma Johnson | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Chisago, Minnesota
Son, age 3
Chisago, Minnesota · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | No |
| Mother Tongue | Swedish |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Chisago, Minnesota
Son, age 14
Chisago, Minnesota · implied b. ~1916 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Chisago-County, Minnesota
Son, age 24
Chisago-County, Minnesota · implied b. ~1916 — 6 household members
| Surname | Johnson |
| Given Name | Theodore C. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Branch twp |
| 1935 Residence (County) | Chisago |
| Occupation | chemist |
| Industry | NYH laboratory |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 220 |
| Highest Grade | H-4 |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence) and father Frank Johnson (~0.92 confidence) and mother Hilda Johnson (~0.92 confidence) and mother Selma Johnson (~0.92 confidence) and mother Selma Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Frank Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Hilda Johnson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Selma Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Selma Johnson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Son · 1940 · age 24 · b. ~1916 · Minnesota
★ You are viewing this record
Sibling
Verna Johnson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernon Johnson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Johnson
Sibling · 1940 · age 20
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 — Chisago-County, Minnesota
Open full size
1940 US Federal Census — Chisago-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01913-00538)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Guline Larson | 64 | wife | — | Norway |
| 2 | Elwin J. Carlson | 55 | Head | Overseer | Minnesota |
| 3 | Ella Carlson | 50 | wife | — | Minnesota |
| 4 | Irving Carlson | 25 | son | Farm Hand | Minnesota |
| 5 | Phyllis Carlson | 22 | daughter | School Teacher | Minnesota |
| 6 | Marcelle Carlson | 20 | daughter | Maid | Minnesota |
| 7 | Douglas Carlson | 17 | son | — | Minnesota |
| 8 | Margaret Carlson | 13 | daughter | — | Minnesota |
| 9 | Myrtle Carlson | 27 | daughter | Women'S Dress Shop | Minnesota |
| 10 | Pete Martin | 75 | lodger | — | Norway |
| 11 | G. H. Johnson | 87 | lodger | — | Sweden |
| 12 | Oliver Anderson | 83 | lodger | — | Sweden |
| 13 | Holstein Johnson | 80 | lodger | — | Sweden |
| 14 | Peter H. Johnson | 75 | lodger | — | Sweden |
| 15 | Fred Youngbloom | 76 | lodger | — | Sweden |
| 16 | Lotta Carlson | 81 | lodger | — | Sweden |
| 17 | Hjalmer Hanson | 45 | lodger | — | Sweden |
| 18 | Mary Kaiser | 52 | lodger | — | Minnesota |
| 19 | August Olson | 78 | lodger | — | Sweden |
| 20 | Ed Gredeen | 85 | lodger | — | Minnesota |
| 21 | Emil Johnson | 62 | lodger | — | Minnesota |
| 22 | John Hillig | 88 | lodger | — | Germany |
| 23 | Florence Anderson | 36 | lodger | — | Minnesota |
| 24 | Freda Benson | 68 | lodger | — | Sweden |
| 25 | Ida Johnson | 78 | lodger | — | Sweden |
| 26 | Ida Jacobson | 58 | lodger | — | Sweden |
| 27 | Joe Schmaril | 56 | lodger | — | Russia |
| 28 | Louie Hamilton | 45 | lodger | — | Minnesota |
| 29 | August C. Carlson | 71 | Head | Farm Operator | Sweden |
| 30 | Esther Carlson | 69 | wife | — | Sweden |
| 31 | Charles J. Johnson | 70 | Head | Farm Operator | Sweden |
| 32 | Selma Johnson | 58 | wife | Assistant Chemist | Sweden |
| 33 | Theodore C. Johnson THIS PERSON | 24 | son | Chemist | Minnesota |
| 34 | George Johnson | 20 | son | Farm Hand | Minnesota |
| 35 | Vernon Johnson | 15 | son | — | Minnesota |
| 36 | Verna Johnson | 15 | daughter | — | Minnesota |
| 37 | Albert Magnuson | 45 | Head | Farm Operator | Minnesota |
| 38 | Edith Magnuson | 41 | wife | — | Minnesota |
| 39 | Alvin Magnuson | 19 | son | Farm Hand | Minnesota |
| 40 | Evelyn Magnuson | 16 | daughter | — | Minnesota |
Related Census Records
Pedigree Summary
Theodore + 3 siblings
Gen 1 · 6 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)