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James Knight — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Washington
Our Model Tree links this James Knight across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Washington (XGBoost, ~Confirmed), with identified parents Everett & Mary — first a head (b.~1908), then head of a 6-person household.
Age 32
b. ~1908
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Washington |
| Surname | Knight |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Discovery Bay Precinct |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Truck driver |
| Industry | State Highway Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Truck Driver |
| Township / Ward | Discovery Bay Precinct |
| Est. Birth Year | ~1908 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Shirley Knight | Daughter | — | 5 | ~1935 |
| James Knight | Head | — | 32 | ~1908 |
| Margaret Mcbee | Other | — | 26 | ~1914 |
| B Pettigrew | Other | — | 65 | ~1875 |
| Abbie Pettigrew | Other | — | 51 | ~1889 |
| Alice Knight | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Jefferson, Washington
Son, age 11
Jefferson, Washington · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Jefferson, Washington
Son, age 22
Jefferson, Washington · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Canada Eng |
| Occupation | Driver |
| Industry | Truck |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Jefferson-County, Washington
Head, age 32
Jefferson-County, Washington · implied b. ~1908 — 6 household members
| Surname | Knight |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Discovery Bay Precinct |
| 1935 Residence (County) | Jefferson |
| Occupation | Truck driver |
| Industry | State Highway Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Knight across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Everett Knight (~0.92 confidence) and mother Mary Knight (~0.92 confidence) and mother Mary Knight (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Everett Knight
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Knight
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Mary Knight
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Knight
Head · 1940 · age 32 · b. ~1908 · 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 — Jefferson-County, Washington
Open full size
1940 US Federal Census — Jefferson-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04342-00333)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas E. Carlson | 75 | Head | — | Shetland Island |
| 2 | Thomas E. Hunter | 71 | Head | — | Maine |
| 3 | Lucy A. Hunter | 69 | Wife | — | Maine |
| 4 | Ernest D. Thompson | 72 | Head | — | Arkansas |
| 5 | James W. Knight THIS PERSON | 32 | Head | Truck Driver | Montana |
| 6 | Alice J. Knight | 31 | Wife | — | Washington |
| 7 | Shirley Jean Knight | 5 | Daughter | — | Washington |
| 8 | B. C. Pettigrew | 65 | Father-in-law | — | Washington |
| 9 | Abbie M. Pettigrew | 51 | Mother-in-law | — | California |
| 10 | Margaret Mcbee | 26 | Lodger | School Teacher | Oregon |
| 11 | James J. Colgan | 28 | Head | Laborer | Scotland |
| 12 | Olga Colgan | 33 | Wife | — | Iowa |
| 13 | Lois Colgan | 7 | Daughter | — | North Dakota |
| 14 | Patricia Colgan | 6 | Daughter | — | North Dakota |
| 15 | James Colgan | 3 | Son | — | North Dakota |
| 16 | Henry Colgan | 2 | Son | — | Washington |
| 17 | Gilbert B. Brimfield | 35 | Head | Farmer | Wisconsin |
| 18 | Catherine Brimfield | 34 | Wife | — | Wisconsin |
| 19 | Gilbert B. Brimfield | 10 | Son | — | Illinois |
| 20 | Harvey Brimfield | 2 | Son | — | Wisconsin |
| 21 | Lorenzo S. Brown | 62 | Head | Falling Timber | Maine |
| 22 | Homer Brown | 57 | Brother | Falling Timber | Maine |
| 23 | John Brown | 41 | Head | Fireman Stationary | Maine |
| 24 | Pete Dinesen | 52 | Head | Farmer | Japan |
| 25 | Haru Dinesen | 52 | Wife | — | Japan |
| 26 | Addie Dinesen | 26 | Daughter | Beauty Operator | Washington |
| 27 | Harry Dinesen | 18 | Son | New Worker | Washington |
| 28 | Betty Dinesen | 15 | Daughter | — | Washington |
| 29 | Sam Dinesen | 12 | Son | — | Washington |
| 30 | Edgar Brown | 74 | Head | Farmer | Maine |
| 31 | Laura Brown | 55 | Wife | — | Colorado |
| 32 | Martin Barcot | 64 | Head | Farm Laborer | Norway |
| 33 | John Loth | 49 | Head | Fisherman | Hungary |
| 34 | Orrey Williams | 66 | Head | Night Watchman | Maine |
| 35 | Ida Williams | 58 | Wife | Farmer | North Carolina |
| 36 | William M. Conrads | 25 | Nephew | Clerk | Washington |
| 37 | James Mauer | 53 | Head | Farmer | Washington |
| 38 | William Mauer | 51 | Brother | Farmer | Washington |
| 39 | Joseph Wycoff | 53 | Head | Farmer | Washington |
| 40 | Esta Wycoff | 41 | Wife | — | Maine |
Pedigree Summary
James
Gen 1 · 3 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)