JC
John Cameron — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this John Cameron across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents M & Martin — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Cameron |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| John Cameron | Son | — | 22 | ~1918 |
| Rose Cameron | Spouse | — | 60 | ~1880 |
| M Cameron | Head | — | 68 | ~1872 |
Census Appearances
1920
King, Washington
Son, age 3
King, Washington · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cameron |
| Given Name | John V. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 13
King, Washington · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cameron |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 22
King-County, Washington · implied b. ~1918 — 3 household members
| Surname | Cameron |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| 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 Cameron across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father M Cameron (~0.92 confidence) and father Martin Cameron (~0.92 confidence) and father Wm Cameron (~0.92 confidence) and mother Rose Cameron (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
M Cameron
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Martin Cameron
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Wm Cameron
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Rose Cameron
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cameron
Son · 1940 · age 22 · b. ~1918 · 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
37 people indexed on this census page (nara:1940:m-t0627-04377-00497)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred Friles | 19 | Head | Bookkeeper | Alaska |
| 42 | William Friles | 18 | Brother | — | Alaska |
| 43 | Frances Friles | 14 | Sister | — | Washington |
| 46 | Oscar Burgland | 68 | Head | Executive | Sweden |
| 47 | Lilla Burgland | 68 | Wife | — | New York |
| 48 | Hazel Eckle | 20 | Niece | Mortician | Montana |
| 49 | Orville E. Clyde | 57 | Head | Mortician | Iowa |
| 50 | Mary Belle Clyde | 48 | Wife | — | Illinois |
| 51 | Victor W. Voorhees | 64 | Head | Architect | Wisconsin |
| 52 | Maude Voorhees | 56 | Wife | — | Montana |
| 53 | Janice Voorhees | 9 | Daughter | — | Washington |
| 54 | Richard Kareen | 12 | Nephew | — | Alaska |
| 55 | Oscar H. Ingerson | 50 | Head | Salesman | Wyoming |
| 56 | Adeline Ingerson | 40 | Wife | — | South Dakota |
| 57 | Theodora Jeanne Ingerson | 13 | Daughter | — | Washington |
| 58 | Jack Duane Ingerson | 8 | Son | — | Washington |
| 59 | M. K. Cameron | 68 | Head | Night Watchman | Canada-English |
| 60 | Rose Cameron | 60 | Wife | — | Iowa |
| 61 | John Cameron THIS PERSON | 22 | Son | — | Washington |
| 63 | C. Edward Mccormick | 40 | Head | Dealer Agent | Colorado |
| 64 | Mary T. Mccormick | 38 | Wife | — | Colorado |
| 65 | Margaret Mccormick | 18 | Daughter | — | Washington |
| 66 | Therese Mccormick | 10 | Daughter | — | Washington |
| 67 | David Wood | 41 | Head | Proprietor | Tennessee |
| 68 | Marie Wood | 46 | Wife | — | Oregon |
| 69 | Jean Wood | 13 | Daughter | — | Washington |
| 70 | Margaret Kelly | 67 | Mother-in-law | — | Illinois |
| 71 | Lillian E. Snyder | 46 | Maid | Cook-Maid | Montana |
| 72 | Celia E. Pills | 74 | Head | Salesman | New York |
| 73 | Carl S. Pills | 54 | Son | — | New York |
| 74 | Stephen Egerman | 78 | Head | — | Hungary |
| 75 | Annie Egerman | 69 | Wife | — | Hungary |
| 76 | Margaret Egerman | 47 | Daughter | Sales Lady | Minnesota |
| 77 | Anne Egerman | 45 | Daughter | Stenographer | Minnesota |
| 78 | Emma Egerman | 39 | Daughter | — | Minnesota |
| 79 | Stephen H. Brown | 55 | Head | Carpenter | Minnesota |
| 80 | Florence T. Brown | 42 | Wife | — | Wisconsin |
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)