JR
John Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this John Ross across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents John & Charlie — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Ross |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 220 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Clerk |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1919 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Hazel Ross | Head | — | 55 | ~1885 |
| Jenny Mooremann | Other | — | 90 | ~1850 |
| John Ross | Son | — | 21 | ~1919 |
Census Appearances
1920
King, Washington
Son, age 1
King, Washington · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | John III |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Oregon |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 11
King, Washington · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 21
King-County, Washington · implied b. ~1919 — 3 household members
| Surname | Ross |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 220 |
| Highest Grade | H 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 John Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Ross (~0.92 confidence) and father Charlie Ross (~0.92 confidence) and mother Laverne Ross (~0.92 confidence) and mother Hazel Ross (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Ross
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Charlie Ross
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Laverne Ross
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Hazel Ross
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Ross
Son · 1940 · age 21 · b. ~1919 · Washington
★ 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 — 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-t0627-04374-00364)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack Hagen | 12 | Son | — | Washington |
| 2 | Jerry Hagen | 9 | Son | — | Washington |
| 3 | Marie Nyman | 71 | Mother in law | — | Finland |
| 4 | John Johnson | 34 | Head | Warehouseman | Kansas |
| 5 | Doris Johnson | 31 | Wife | — | England |
| 6 | Carole Johnson | 9 | Daughter | — | Washington |
| 7 | Martin Johnson | 5 | Son | — | Washington |
| 8 | Orie H Garfor | 57 | Head | Stacker | Iowa |
| 9 | Mary E Garfor | 55 | Wife | — | Iowa |
| 10 | Luther Garfor | 60 | Brother | — | Iowa |
| 11 | Hazel D Ross | 55 | Head | — | Ohio |
| 12 | John A Ross THIS PERSON | 21 | Son | Clerk | Washington |
| 13 | Jenny Mooremann | 90 | Mother | — | Ohio |
| 14 | Primrose B Muir | 42 | Head | Switchboard | England |
| 15 | Charlotte Muir | 10 | Daughter | — | Washington |
| 16 | Charlotte Arnesson | 68 | Mother | — | England |
| 17 | Frank Sullivan | 62 | Head | Salesman | Massachusetts |
| 18 | Mary E Sullivan | 42 | Wife | — | Iowa |
| 19 | Benjamin Marine | 48 | Head | Retired Police | Iowa |
| 20 | Lillian A Marine | 44 | Wife | Matron Detention | Iowa |
| 21 | Joseph Geary | 52 | Head | Salesman | Massachusetts |
| 22 | Carrie Geary | 47 | Wife | Saleslady | Washington |
| 23 | Guy Peterman | 49 | Head | Roofer | Washington |
| 24 | Elizabeth Peterman | 49 | Wife | — | Scotland |
| 25 | Ethlyn Peterman | 19 | Daughter | Egg Baker | Washington |
| 26 | George Flynn | 52 | Head | Machinist | Michigan |
| 27 | Beulah Flynn | 36 | Wife | — | Iowa |
| 28 | Donald Flynn | 9 | Son | — | Washington |
| 29 | Robert Flynn | 7 | Son | — | Washington |
| 30 | — | None | — | — | — |
| 31 | Alfred Johnson | 53 | Head | Furnace Man | Wisconsin |
| 32 | Anna Johnson | 56 | Wife | — | Wisconsin |
| 33 | Harold Johnson | 25 | Son | Truck Driver | Wisconsin |
| 34 | Elaine Johnson | 21 | Daughter | Seamstress | Wisconsin |
| 35 | Helen Johnson | 15 | Daughter | — | Washington |
| 36 | Annabelle Johnson | 13 | Daughter | — | Washington |
| 37 | John F Masten | 57 | Head | Street Car Operator | Sweden |
| 38 | Erika W Masten | 55 | Wife | — | Sweden |
| 39 | George Dutton | 79 | Head | — | Wisconsin |
| 40 | Cora Dutton | 70 | Wife | — | New York |
Pedigree Summary
John
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)