HJ
Helen Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Helen Johnson across the 1910, 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Drug |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 990 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Clerk |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1910 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Johnson | Daughter | — | 30 | ~1910 |
| Helen Johnson | Head | — | 60 | ~1880 |
| Lloyd Johnson | Son | — | 23 | ~1917 |
Census Appearances
1910
King, Washington
Daughter, age
King, Washington · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Helen C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Syd Sweden |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
King, Washington
Daughter, age 10
King, Washington · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Daughter, age 20
King, Washington · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Sweden |
| Occupation | Billing Clerk |
| Industry | Drug Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Daughter, age 30
King-County, Washington · implied b. ~1910 — 3 household members
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Clerk |
| Industry | Retail Drug |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 990 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Helen Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and mother Helen Johnson (~0.92 confidence) and mother Helen Johnson (~0.92 confidence) and mother Helen Johnson (~0.92 confidence) and mother Helen Johnson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Helen Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Helen Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Helen Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Helen Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Johnson
Daughter · 1940 · age 30 · b. ~1910 · Washington
★ You are viewing this record
Sibling
Lloyd Johnson
Sibling · 1940 · age 23
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04382-00082)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Johnson | 60 | Head | — | Sweden |
| 42 | Helen Johnson THIS PERSON | 30 | Daughter | Clerk | Washington |
| 43 | Lloyd Johnson | 23 | Son | Laborer | Washington |
| 44 | Emma Snell | 53 | Head | Laundress | Sweden |
| 45 | Earl Snell | 26 | Son | Machinist | Washington |
| 46 | Clara Christensen | 78 | Head | — | Sweden |
| 47 | Violet Miller | 37 | Daughter | — | Washington |
| 48 | Donald Miller | 39 | Son-in-law | Buyer | Washington |
| 49 | Roy Miller | 10 | Grandson | — | Washington |
| 50 | Marilyn Miller | 7 | Granddaughter | — | Washington |
| 51 | Charles Miller | 5 | Grandson | — | Washington |
| 52 | Primo Mazzoni | 47 | Head | Laborer | Italy |
| 53 | Cecilia Mazzoni | 47 | Wife | — | Italy |
| 54 | Omideo Mazzoni | 24 | Son | Laborer | Illinois |
| 55 | Umberto Umbinetti | 58 | Head | Laborer | Italy |
| 56 | Assuntina Umbinetti | 59 | Wife | — | Italy |
| 57 | Harry Umbinetti | 26 | Son | Laborer | Montana |
| 58 | Georgina Umbinetti | 23 | Daughter | — | Montana |
| 59 | Italia Umbinetti | 17 | Daughter | — | Montana |
| 60 | Roger Rimpini | 58 | Head | Laborer | Italy |
| 61 | Julia Rimpini | 52 | Wife | — | Italy |
| 62 | Gospar Fatticcioni | 64 | Head | — | Italy |
| 63 | John Doroshenko | 50 | Head | Junk Buyer | Russia |
| 64 | Malania Doroshenko | 47 | Wife | — | Russia |
| 65 | Robert Perry | 18 | Head | Laborer | Washington |
| 66 | Elaine Perry | 19 | Wife | — | Michigan |
| 67 | Ronald Perry | 0 | Son | — | Washington |
| 68 | Anna M. Keiffer | 76 | Head | — | West Virginia |
| 69 | Leo Quintoli | 31 | Head | Stockman | Washington |
| 70 | Viola Quintoli | 28 | Wife | — | Washington |
| 71 | Barbara Quintoli | 5 | Daughter | — | Washington |
| 72 | Robert Quintoli | 2 | Son | — | Washington |
| 73 | Louis Bertoldi | 49 | Head | Miller | Italy |
| 74 | Amelia Bertoldi | 35 | Wife | Merchant | Minnesota |
| 75 | Ermand Bertoldi | 15 | Son | — | Washington |
| 76 | Virginia Bertoldi | 13 | Daughter | — | Washington |
| 77 | End Of Block 132 - Begin Block 133 | None | — | — | — |
| 78 | Felix Evans | 50 | Head | Laborer | Washington |
| 79 | Annie Evans | 68 | Wife | — | Kentucky |
| 80 | Oli Knutson | 48 | Head | Steelworker | Norway |
Related Census Records
Pedigree Summary
Helen + 1 sibling
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)