TJ
Theodore Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Adams, Colorado
Our Model Tree links this Theodore Johnson across the 1910, 1920 and 1930 US Censuses in Adams, Colorado (XGBoost, ~Confirmed), with identified parents Gustav — first a son (b.~1891), then head of a 6-person household.
Age 39
b. ~1891
Male
Son
Born: Colorado
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Adams, Colorado |
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Laborer |
| Industry | Dairy farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Laborer |
| Township / Ward | Precinct 22 |
| Est. Birth Year | ~1891 |
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 1930 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Lilly Johnson | Daughter | — | 25 | ~1905 |
| Gustav Johnson | Head | — | 63 | ~1867 |
| Robert Johnson | Other | — | 4 | ~1926 |
| Axel Johnson | Son | — | 38 | ~1892 |
| Hattie Johnson | Son | — | 23 | ~1907 |
| Theodore Johnson | Son | — | 39 | ~1891 |
Census Appearances
1910
Adams, Colorado
Other, age 19
Adams, Colorado · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodor |
| Relationship to Head | Hired Man |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Swed-Swedish |
| Mother's Birthplace | Swed-Swedish |
| Occupation | Farm Laborer |
| Industry | Dairy Farm |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Adams, Colorado
Other, age 28
Adams, Colorado · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Dairy |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Adams, Colorado
Son, age 39
Adams, Colorado · implied b. ~1891 — 6 household members
| Surname | Johnson |
| Given Name | Theodore |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Dairy farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Adams, Colorado, using XGBoost record linkage. Identified parents: father Gustav Johnson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Gustav Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
This person
Anchor record
Theodore Johnson
Son · 1930 · age 39 · b. ~1891 · Colorado
★ You are viewing this record
Sibling
Hattie Johnson
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Axel Johnson
Sibling · 1930 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lilly Johnson
Sibling · 1930 · age 25
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 — Adams, Colorado
Open full size
1930 US Federal Census — Adams, Colorado
Page Contents
48 people indexed on this census page (ia:1930:15thcensus229unit:0305)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 53 | Ruth Gundebuer | 32 | daughter | Teacher | Colorado |
| 54 | Gustav Johnson | 63 | head | Farmer | Sweden |
| 55 | Lilly Johnson | 25 | daughter | — | Colorado |
| 56 | Hattie Johnson | 23 | son | — | Colorado |
| 57 | Axel Johnson | 38 | son | Dairyman | Illinois |
| 58 | Robert Johnson | 4 | grandson | — | Colorado |
| 59 | Theodore Johnson THIS PERSON | 39 | son | Laborer | Colorado |
| 60 | William L. Denham | 34 | head | Farmer | Pennsylvania |
| 61 | Grace Denham | 31 | wife-h | — | Iowa |
| 62 | Margaret Denham | 5 | daughter | — | Colorado |
| 63 | Denham | 3 | son | — | Colorado |
| 64 | Jess Knight | 33 | head | — | Nevada |
| 65 | Nels F. Nelsen | 45 | head | Proprietor | Denmark |
| 66 | Ellerine C. Nelsen | 42 | wife-h | — | Denmark |
| 67 | Howard Nelsen | 14 | son | — | Colorado |
| 68 | Margaret Nelsen | 12 | daughter | — | Colorado |
| 69 | Gladys Nelsen | 8 | daughter | — | Colorado |
| 70 | Henry Roone | 26 | head | Laborer | Missouri |
| 71 | Edward Roone | 4 | son | — | Missouri |
| 72 | Nels Mikkelsen | 57 | head | Proprietor | Denmark |
| 73 | Dorothy Mikkelsen | 71 | wife-h | — | Denmark |
| 74 | Vincent Micky | 18 | head | Laborer | Colorado |
| 75 | Andrew Brink | 71 | head | Laborer | Denmark |
| 76 | Theo C. Dahl | 38 | head | Proprietor | Denmark |
| 77 | Lila M. Dahl | 29 | wife-h | — | Colorado |
| 78 | Frances Dahl | 6 | daughter | — | Colorado |
| 79 | Alice Dahl | 4 | daughter | — | Colorado |
| 80 | Alvery Barnett | 25 | Laborer | Laborer | Ohio |
| 81 | Hans Bendison | 26 | Laborer | Laborer | Denmark |
| 82 | Ole Dahl | 46 | head | Laborer | Denmark |
| 83 | Christine Dahl | 56 | wife-h | — | Denmark |
| 84 | John Jorgensen | 37 | head | Proprietor | Denmark |
| 85 | Marie O. Jorgensen | 39 | wife-h | — | Denmark |
| 86 | Meta Jorgensen | 18 | daughter | — | Colorado |
| 87 | Nels Jorgensen | 15 | son | — | Idaho |
| 88 | Edith Jorgensen | 13 | daughter | — | Idaho |
| 89 | Raymond Jorgensen | 5 | son | — | Colorado |
| 90 | Marie M. Jorgensen | 3 | daughter | — | Colorado |
| 91 | Richard S. Morrison | 26 | Boarder | Laborer | Texas |
| 92 | Chris Jorgensen | 40 | head | Proprietor | Denmark |
| 93 | Dagmar Jorgensen | 35 | wife-h | — | Denmark |
| 94 | Evelyn Jorgensen | 16 | daughter | — | Colorado |
| 95 | Jerry Jorgensen | 12 | son | — | Colorado |
| 96 | Glen Jorgensen | 2 | son | — | Colorado |
| 97 | George Bork | 26 | Boarder | Laborer | Denmark |
| 98 | Peter Bork | 19 | Boarder | Laborer | Denmark |
| 99 | Martine Martinsen | 55 | Boarder | Laborer | Denmark |
| 100 | Robert Lanquist | 46 | head | Farmer | Norway |
Pedigree Summary
Theodore + 3 siblings
Gen 1 · 1 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)