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Eugene Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Eugene Brown across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Eugene & Eugene — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Brown |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Advertising |
| Industry | Newspaper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Advertising |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1917 |
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 Eugene | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Brown | Daughter | — | 28 | ~1912 |
| Laetitia Brown | Head | — | 51 | ~1889 |
| Eugene Brown | Son | — | 23 | ~1917 |
Census Appearances
1920
King, Washington
Son, age 3
King, Washington · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Eugene L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | California |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
King, Washington
Son, age 13
King, Washington · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Eugene L. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Arizona |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
King-County, Washington
Son, age 23
King-County, Washington · implied b. ~1917 — 3 household members
| Surname | Brown |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Advertising |
| Industry | Newspaper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Eugene Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Eugene Brown (~0.92 confidence) and father Eugene Brown (~0.92 confidence) and mother Edith Brown (~0.92 confidence) and mother Laetitia Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Eugene Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Eugene Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Edith Brown
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Laetitia Brown
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Eugene Brown
Son · 1940 · age 23 · b. ~1917 · Washington
★ You are viewing this record
Sibling
Eleanor Brown
Sibling · 1940 · age 28
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-t0627-04380-00111)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John D. Waller | 64 | Head | Salesman | Tennessee |
| 2 | Mildred Roche | 39 | Head | Operator | Montana |
| 3 | Don Roche | 19 | Son | Apprentice | Montana |
| 4 | Etta Adams | 70 | Head | — | California |
| 5 | Laetitia Brown | 51 | Head | — | California |
| 6 | Eleanor Brown | 28 | Daughter | Clerk | Oregon |
| 7 | Eugene Brown THIS PERSON | 23 | Son | Advertising | Oregon |
| 8 | Margaret Zimmerman | 57 | Head | Assistant | Minnesota |
| 9 | James Winans | 47 | Head | Operator | Ohio |
| 10 | Hazel Winans | 50 | Wife | — | Nebraska |
| 11 | Helene Engh | 39 | Head | Teacher | North Dakota |
| 12 | Jane Harris | 50 | Head | Teacher | Indiana |
| 13 | Edna Aas | 27 | Head | Manager | Idaho |
| 14 | Helen Beck | 24 | Partner | Dietitian | Washington |
| 15 | Yukona Moyer | 26 | Partner | Waitress | Alaska |
| 16 | Sally Phipps | 31 | Head | Medical Secretary | Kentucky |
| 17 | John C. D. Porter | 38 | Head | Sales Manager | Pennsylvania |
| 18 | Marion M. Porter | 34 | Wife | — | Illinois |
| 19 | John C. Freeman | 51 | Head | Duty Clerk | California |
| 20 | Adelaide Freeman | 50 | Wife | House Mother | Iowa |
| 21 | Marguerite Mullane | 52 | Head | Teacher | Wisconsin |
| 22 | Ruth Mitchell | 37 | Head | Bookkeeper | Texas |
| 23 | Extra Line | None | — | — | — |
| 24 | Ora Nickerson | 63 | Head | Inspector | Wyoming |
| 25 | Maybelle Nickerson | 50 | Wife | — | Iowa |
| 26 | Otto Sperling | 42 | Head | Teacher | Nebraska |
| 27 | Grace Haines | 40 | Head | Assistant Secretary | Washington |
| 28 | Janet Jorgens | 28 | Head | Beautician | Canada-English |
| 29 | Thelma Jorgens | 26 | Sister | Secretary | Canada-English |
| 30 | Ten Million | 50 | Head | Claim Adjuster | Washington |
| 31 | Decillian Million | 19 | Daughter | — | Washington |
| 32 | Sydney Rand | 52 | Head | Salesman | England |
| 33 | Dorothy Rand | 47 | Wife | — | Minnesota |
| 34 | Edna Hansen | 50 | Head | Nurse | Washington |
| 35 | Edna Seymour | 50 | Partner | Assistant Manager | Minnesota |
| 36 | Albert Jones | 65 | Head | Baker | New York |
| 37 | Katherine Walicky | 22 | Head | Stenographer | Washington |
| 38 | Sylvia Gorr | 22 | Partner | Waitress | Washington |
| 39 | Eugene Paul | 43 | Head | Engineer | Wisconsin |
| 40 | Bertram Berry | 56 | Partner | Painter | Minnesota |
Pedigree Summary
Eugene + 1 sibling
Gen 1 · 4 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)