JD
James Davidson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this James Davidson across the 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 8-person household.
Age 50
b. ~1890
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Davidson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Coalfield |
| 1935 Residence (County) | King |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Road Const |
| Industry | PW |
| Class of Worker | 525 |
| Highest Grade | G 8 |
| 1935 Residence | Wash |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Road Const |
| Township / Ward | Coalfield |
| Est. Birth Year | ~1890 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Patricia Davidson | Daughter | — | 11 | ~1929 |
| Dorothy Davidson | Daughter | — | 15 | ~1925 |
| James Davidson | Head | — | 50 | ~1890 |
| Leonard Davidson | Son | — | 17 | ~1923 |
| Geo Davidson | Son | — | 23 | ~1917 |
| Laird Davidson | Son | — | 2 | ~1938 |
| Frank Davidson | Son | — | 21 | ~1919 |
| Irma Davidson | Spouse | — | 44 | ~1896 |
Census Appearances
1930
King, Washington
Head, age 40
King, Washington · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | $1000 |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
King-County, Washington
Head, age 50
King-County, Washington · implied b. ~1890 — 8 household members
| Surname | Davidson |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Coalfield |
| 1935 Residence (County) | King |
| Naturalization Status | Naturalized |
| Occupation | Road Const |
| Industry | PW |
| Class of Worker | 525 |
| Highest Grade | G 8 |
| 1935 Residence | Wash |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 James Davidson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Davidson
Head · 1940 · age 50 · b. ~1890 · 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-t0627-04343-00977)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edna Moon | 41 | Wife | — | Iowa |
| 2 | Ida M. Moon | 10 | Daughter | — | Mont |
| 3 | Jerry Moon | 7 | Son | — | Mont |
| 4 | Wm. Hillman | 69 | Head | — | Nebr |
| 5 | Maude Hillman | 64 | Wife | — | Centralia, Ill |
| 6 | Albert Prisel | 36 | Head | Laborer | Wash |
| 7 | Margaret Prisel | 40 | Wife | — | Iowa |
| 8 | Beulah M. Prisel | 13 | Daughter | — | Ill |
| 9 | Geo. Goldman | 25 | Head | Riveter | Wash |
| 10 | Inez Goldman | 21 | Wife | — | Wash |
| 11 | Suel Goldman | 3 | Daughter | — | Wash |
| 12 | Pearl Goldman | 52 | Head | — | Wash |
| 13 | Julia Goldman | 24 | Daughter | — | Wash |
| 14 | Henry Schild | 52 | Boarder | Ship Fitter | Kentucky |
| 15 | Robt. Jennings | 44 | Head | Laborer | Texas |
| 16 | Beulah Jennings | 40 | Wife | — | Georgia |
| 17 | Ralph Courtright | 53 | Head | Fire Fighter | Penn |
| 18 | Blanche Courtright | 51 | Wife | — | Kans |
| 19 | Wm. F. Phillips | 35 | Head | Truck Driver | Ill |
| 20 | Virginia Phillips | 31 | Wife | — | Denmark |
| 21 | Barbara Phillips | 12 | Daughter | — | Wash |
| 22 | Inez P. Perfect | 55 | Head | — | Iowa |
| 23 | Geo. V. Holmes | 27 | Head | Clerk | Mo |
| 24 | Ira J. Holmes | 25 | Wife | — | Centralia, Ill |
| 25 | Virginia J. Holmes | 4 | Daughter | — | Cal |
| 26 | Ella B. Holmes | 1 | Daughter | — | Wash |
| 27 | Oscar Perfect | 23 | Head | Riveter | Wash |
| 28 | Mary Perfect | 20 | Wife | — | Wash |
| 29 | Milton Leonard | 36 | Head | Painter | Nebr |
| 30 | Leona Leonard | 35 | Wife | — | Nebr |
| 31 | La Verne Leonard | 13 | Daughter | — | Nebr |
| 32 | Vic. Leonard | 12 | Daughter | — | Nebr |
| 33 | James Davidson THIS PERSON | 50 | Head | Road Const | Scotland |
| 34 | Irma Davidson | 44 | Wife | — | Colo |
| 35 | Geo. Davidson | 23 | Son | — | Wash |
| 36 | Frank Davidson | 21 | Son | Fireman | Wash |
| 37 | Leonard Davidson | 17 | Son | — | Wash |
| 38 | Dorothy Davidson | 15 | Daughter | — | Wash |
| 39 | Patricia Davidson | 11 | Daughter | — | Wash |
| 40 | Laird Davidson | 2 | Son | — | Wash |
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)