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James Buchanan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this James Buchanan across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 3-person household.
Age 78
b. ~1862
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Buchanan |
| Given Name | James C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Manager |
| Industry | Machine Shop |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 156 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Manager |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1862 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Buchanan | Head | — | 78 | ~1862 |
| Emma Buchanan | Spouse | — | 75 | ~1865 |
| Marian Buchanan | Daughter | — | 35 | ~1905 |
Census Appearances
1920
King, Washington
Head, age 53
King, Washington · implied b. ~1867 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | James H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Superintendent |
| Industry | Shipyard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Scotland |
| Year of Naturalization | 1892 |
| Birthplace (normalized) | scotland |
1930
King, Washington
Head, age 68
King, Washington · implied b. ~1862 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 38 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Marine Engineer |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 6800 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
King-County, Washington
Head, age 78
King-County, Washington · implied b. ~1862 — 3 household members
| Surname | Buchanan |
| Given Name | James C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Naturalization Status | Naturalized |
| Occupation | Manager |
| Industry | Machine Shop |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 156 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Buchanan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Buchanan
Head · 1940 · age 78 · b. ~1862 · 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-t0627-04377-00601)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James C. Buchanan THIS PERSON | 78 | Head | Manager | Scotland |
| 2 | Emma Buchanan | 75 | Wife | — | Oregon |
| 3 | Marian Buchanan | 35 | Daughter | Sales Girl | California |
| 4 | H. R. Foster | 52 | Head | Dentist | Washington |
| 5 | Vera Foster | 45 | Wife | — | Missouri |
| 6 | Donald Foster | 14 | Son | — | Washington |
| 7 | Samuel Ernst | 66 | Head | Contractor | Nebraska |
| 8 | Lena D. Ernst | 59 | Wife | — | Oregon |
| 9 | Mary Stewart | 64 | Head | Teacher | Canada-English |
| 10 | Kenneth Stewart | 69 | Brother | — | Canada-English |
| 11 | Jessie M. Stewart | 62 | Sister | — | Canada-English |
| 12 | Ida D. Ernst | 64 | Head | — | Ohio |
| 13 | Helen E. Ernst | 35 | Daughter | Trained Nurse | Washington |
| 14 | Marjorie Helen Steiner | 35 | Lodger | Home Economist | California |
| 15 | Lois W. Maurer | 37 | Lodger | Cashier Bookkeeper | Oregon |
| 16 | Florence E. Ausman | 30 | Lodger | Nurse | Wisconsin |
| 17 | Harry L. Northup | 53 | Head | Buyer | Iowa |
| 18 | Bessie Northup | 52 | Wife | — | Iowa |
| 19 | Harry Jr. Northup | 17 | Son | — | Iowa |
| 20 | Kenneth A. Northup | 15 | Son | — | Washington |
| 21 | Leroy Kuna | 52 | Head | Commissioner | Oregon |
| 22 | Hazel Kuna | 41 | Wife | — | Utah |
| 23 | Ann Kuna | 19 | Daughter | — | Oregon |
| 24 | Coralie Kuna | 17 | Daughter | — | Idaho |
| 25 | Robert Kuna | 16 | Son | — | Alaska |
| 26 | Robert Morris | 42 | Head | County Auditor | Kentucky |
| 27 | Dorothy Morris | 36 | Wife | — | Nebraska |
| 28 | Marilyn Morris | 7 | Daughter | — | Washington |
| 29 | A. B. Lund | 59 | Head | Asst. City Treasurer | New York |
| 30 | Marguerite Lund | 54 | Wife | — | New York |
| 31 | Robert Lund | 25 | Son | Clerk | Washington |
| 32 | Nathan Lund | 21 | Son | Junior Reporter | Washington |
| 33 | Carol Lund | 12 | Daughter | — | Washington |
| 34 | Maria Chase | 85 | Mother-in-law | — | New York |
| 35 | Arthur G. Means | 51 | Head | Plant Superintendent | Oregon |
| 36 | Lavina Means | 50 | Wife | — | Oregon |
| 37 | Arnold Means | 25 | Son | Clerk | Oregon |
| 38 | Arthur Jr. Means | 24 | Son | Engineer | Oregon |
| 39 | Jeanne Means | 21 | Wife | — | Washington |
| 40 | M. Sterner Anderson | 45 | Head | Automobile | California |
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)