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James Buchanan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Yuma-County, Colorado
Our Model Tree links this James Buchanan across the 1920, 1930 and 1940 US Censuses in Yuma-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.
Age 57
b. ~1883
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Yuma-County, Colorado |
| Surname | Buchanan |
| Given Name | James L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wray |
| 1935 Residence (County) | Yuma |
| Additional Details | |
| Occupation | Dentist |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Dentist |
| Township / Ward | Wray |
| Est. Birth Year | ~1883 |
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 |
|---|---|---|---|---|
| Grace Buchanan | Other | — | 34 | ~1906 |
| James Buchanan | Head | — | 57 | ~1883 |
| Margaret Buchanan | Spouse | — | 61 | ~1879 |
| Jayles Buchanan | Son | — | 35 | ~1905 |
| James Buchanan | Other | — | 10 | ~1930 |
| Joanne Buchanan | Other | — | 13 | ~1927 |
Census Appearances
1920
Yuma, Colorado
Head, age 38
Yuma, Colorado · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | James T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Dentist Surgeon |
| Industry | General Practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Yuma, Colorado
Head, age 47
Yuma, Colorado · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buchanan |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Dentist |
| Industry | own office |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Yuma-County, Colorado
Head, age 57
Yuma-County, Colorado · implied b. ~1883 — 6 household members
| Surname | Buchanan |
| Given Name | James L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wray |
| 1935 Residence (County) | Yuma |
| Occupation | Dentist |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 57 · b. ~1883 · Colorado
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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 — Yuma-County, Colorado
Open full size
1940 US Federal Census — Yuma-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00483-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bess O Shire | 81 | Head | — | Canada |
| 42 | Mike C Walker | 64 | Head | — | Kansas |
| 43 | Elva L Walker | 37 | Wife | — | Missouri |
| 44 | Lawrence A Walker | 18 | Son | — | Colorado |
| 45 | Roy L Walker | 11 | Son | — | Colorado |
| 46 | Jamie R Walker | 8 | Son | — | Colorado |
| 47 | Robert L Walker | 4 | Son | — | Colorado |
| 48 | Donald D Walker | 1 | Son | — | Colorado |
| 50 | Samuel M Scott | 69 | Head | — | Pennsylvania |
| 51 | Ella D Scott | 73 | Wife | — | Kansas |
| 52 | Gertie W Daggett | 65 | Head | — | New York |
| 53 | Pearl C Daggett | 38 | Daughter | School Teacher | Nebraska |
| 54 | Leo C Burns | 24 | Head | Serviceman | Colorado |
| 55 | Mary A Burns | 21 | Wife | Teller | Missouri |
| 56 | Timothy C Devlin | 22 | Lodger | Waiter | Nebraska |
| 57 | George R Brown | 46 | Head | Letter Carrier | Nebraska |
| 58 | Hazel Brown | 38 | Wife | — | Colorado |
| 59 | David C Brown | 9 | Son | — | Colorado |
| 60 | Norman L Brown | 5 | Son | — | Colorado |
| 61 | M F Herbert | 54 | Head | Cashier | Ohio |
| 62 | Genevieve M Herbert | 49 | Wife | — | Ohio |
| 63 | Lois R Drummond | 26 | Head | Stenographer | Colorado |
| 64 | Dorothy Lou Drummond | 3 | Daughter | — | Colorado |
| 65 | John Roy Drummond | 2 | Son | — | Colorado |
| 66 | Wesley D Johnson | 80 | Head | — | Indiana |
| 67 | Amanda A Johnson | 80 | Wife | — | Indiana |
| 68 | Charles V Lawrence | 69 | Head | — | Illinois |
| 69 | Barbara H Lawrence | 65 | Wife | — | Missouri |
| 70 | Edward F Snedeker | 33 | Head | Salesman | Nebraska |
| 71 | Rebecca C Snedeker | 32 | Wife | — | Indiana |
| 72 | Rita M Snedeker | 9 | Daughter | — | Iowa |
| 74 | James L Buchanan THIS PERSON | 57 | Head | Dentist | Pennsylvania |
| 75 | Margaret W Buchanan | 61 | Wife | — | Pennsylvania |
| 76 | Jayles W Buchanan | 35 | Son | Owner | Pennsylvania |
| 77 | Grace M Buchanan | 34 | Daughter-in-law | — | Nebraska |
| 78 | Joanne S Buchanan | 13 | Granddaughter | — | Nebraska |
| 79 | James C Buchanan | 10 | Grandson | — | Colorado |
| 80 | John Castin | 87 | Head | — | 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)