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John Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this John Johnston across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 4-person household.
Age 48
b. ~1892
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Johnston |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | longshoreman |
| Industry | shipping waterfront |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 1417 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Longshoreman |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1892 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Coletta Moody | Daughter | — | 23 | ~1917 |
| John Johnston | Head | — | 48 | ~1892 |
| Lewis Moody | Other | — | 27 | ~1913 |
| Evelyn Johnston | Spouse | — | 44 | ~1896 |
Census Appearances
1920
King, Washington
Head, age 29
King, Washington · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Pennsylvania |
| Occupation | Longshoreman |
| Industry | Docks |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
King, Washington
Head, age 39
King, Washington · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 26 |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Occupation | Longshore |
| Industry | Ships |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 17.50 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
King-County, Washington
Head, age 48
King-County, Washington · implied b. ~1892 — 4 household members
| Surname | Johnston |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | longshoreman |
| Industry | shipping waterfront |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 1417 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Johnston
Head · 1940 · age 48 · b. ~1892 · Washington
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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-t0627-04377-00163)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carl Kruse | 25 | Son | Laborer | Washington |
| 42 | Effie Penny | 63 | Head | — | Newfoundland |
| 43 | Gladys Penny | 39 | Daughter | Seamstress | Massachusetts |
| 44 | George J. Penny | 27 | Son | Pipe-Fitter | Washington |
| 45 | George J. Walker | 23 | Head | Bookkeeping Clerk | Washington |
| 46 | Norma G. Walker | 26 | Wife | Office Clerk | Washington |
| 47 | Emma E. Lund | 54 | Head | — | Colorado |
| 48 | Ida Isaacson | 65 | Lodger | Chambermaid | Sweden |
| 49 | Park King | 65 | Lodger | Warehouseman | Missouri |
| 50 | Andrew Puckeable | 71 | Head | — | Norway |
| 51 | George H. Crist | 39 | Head | Laborer | Washington |
| 52 | Esther Crist | 25 | Wife | — | Washington |
| 53 | Margaret Crist | 5 | Daughter | — | Washington |
| 54 | Theodore T. Ingram | 29 | Head | Painter | Washington |
| 55 | Ida M. Ingram | 27 | Wife | — | Iowa |
| 56 | Richard L. Ingram | 3 | Son | — | Washington |
| 57 | Otto G. Schultz | 49 | Head | Draftsman | Wisconsin |
| 58 | Edith Schultz | 48 | Wife | — | Pennsylvania |
| 59 | Edith L. Schultz | 17 | Daughter | — | New Jersey |
| 60 | Audrey C. Schultz | 16 | Daughter | — | New Jersey |
| 61 | Mitchell D. Chandley | 25 | Head | Painter & Decorator | Kansas |
| 62 | Alice M. Chandley | 24 | Wife | — | Canada-English |
| 63 | — | None | — | — | — |
| 64 | Joe R. Morris | 45 | Head | Nurseryman | Colorado |
| 65 | — | None | — | — | — |
| 66 | Ole Bjarne Pedersen | 57 | Head | Captain | Norway |
| 67 | Peter Pedersen | 55 | Brother | Fisherman | Norway |
| 68 | Brother Pedersen | 47 | Brother | Fisherman | Norway |
| 69 | Antonio Treno | 56 | Head | Peddler | Italy |
| 70 | John F. Bailey | 52 | Head | Longshoreman | Canada-English |
| 71 | Guy J. Bessac | 31 | Head | Warehouseman | Nebraska |
| 72 | Gladys Bessac | 31 | Wife | — | Oklahoma |
| 73 | George J. Bessac | 2 | Son | — | Washington |
| 74 | John J. Johnston THIS PERSON | 48 | Head | Longshoreman | Iowa |
| 75 | Evelyn M. Johnston | 44 | Wife | — | Washington |
| 76 | Lewis M. Moody | 27 | Son-in-law | Truck Driver | Minnesota |
| 77 | Coletta E. Moody | 23 | Daughter | — | Washington |
| 78 | Ethel C. Macy | 48 | Head | Spinner | Washington |
| 79 | John B. Johnston | 80 | Head | — | Missouri |
| 80 | Harry A. Corrington | 58 | Head | Physician | Iowa |
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)