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James Arthur — 1940 US Census Record
Linked across censuses1940 United States Federal Census · La-Plata-County, Colorado
Our Model Tree links this James Arthur across the 1930 and 1940 US Censuses in La-Plata-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 8-person household.
Age 60
b. ~1880
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | La-Plata-County, Colorado |
| Surname | Arthur |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Precinct 2 |
| 1935 Residence (County) | La Plata |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Precinct 2 |
| Est. Birth Year | ~1880 |
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 |
|---|---|---|---|---|
| Enora Arthur | Daughter | — | 14 | ~1926 |
| Nora Arthur | Spouse | — | 55 | ~1885 |
| Ethel Mckelvey | Daughter | — | 32 | ~1908 |
| Jack Arthur | Son | — | 14 | ~1926 |
| Gerald Mckelvey | Other | — | 2 | ~1938 |
| Robert Mckelvey | Other | — | 35 | ~1905 |
| James Arthur | Head | — | 60 | ~1880 |
| Marjorie Arthur | Daughter | — | 18 | ~1922 |
Census Appearances
1930
La Plata, …
Head, age 50
La Plata, Colorado · implied b. ~1880 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arthur |
| Given Name | James L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 26 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Florida |
| Occupation | Farming |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
La-Plata-County, Colorado
Head, age 60
La-Plata-County, Colorado · implied b. ~1880 — 8 household members
| Surname | Arthur |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Precinct 2 |
| 1935 Residence (County) | La Plata |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Arthur across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Arthur
Head · 1940 · age 60 · b. ~1880 · Colorado
★ 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 — La-Plata-County, Colorado
Open full size
1940 US Federal Census — La-Plata-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00466-00809)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James L. Arthur THIS PERSON | 60 | Head | — | Kentucky |
| 2 | Nora M. Arthur | 55 | Wife | — | Colorado |
| 3 | Marjorie M. Arthur | 18 | Daughter | Attendant | Colorado |
| 4 | Jack Arthur | 14 | Son | — | Colorado |
| 5 | Enora Arthur | 14 | Daughter | — | Colorado |
| 6 | Robert C. Mckelvey | 35 | Son-in-law | Laborer | Colorado |
| 7 | Ethel M. Mckelvey | 32 | Daughter | — | Colorado |
| 8 | Gerald Mckelvey | 2 | Grand-son | — | Colorado |
| 9 | Marion B. Coverdell | 49 | Head | Trucking | Missouri |
| 10 | Muriel Coverdell | 24 | Wife | — | Kansas |
| 11 | Elwood Coverdell | 21 | Son | Trucking | Colorado |
| 12 | Ancil S. Coverdell | 19 | Son | — | Kansas |
| 13 | Robert E. Coverdell | 16 | Son | — | Colorado |
| 14 | May M. Coverdell | 3 | Daughter | — | New Mexico |
| 15 | Sondra A. Coverdell | 0 | Son | — | Colorado |
| 16 | Josephine Rockwell | 74 | Head | — | Illinois |
| 17 | Mabel Rockwell | 44 | Daughter | Laborer | Colorado |
| 18 | Harry Gross | 49 | Head | Machinist | Nebraska |
| 19 | Maude Gross | 51 | Wife | — | Kansas |
| 20 | Maude J. Gross | 6 | Daughter | — | Colorado |
| 21 | Harry J. O'Brien | 48 | Head | Patrolman | New Mexico |
| 22 | Eva O'Brien | 46 | Wife | — | Colorado |
| 23 | Robert H. O'Brien | 27 | Son | Assistant Clerk | Colorado |
| 24 | "Margaret ""Lib""" O'Brien | 20 | Daughter | 720 | Colorado |
| 25 | Albert W. O'Brien | 19 | Son | — | New York |
| 26 | Eva L. O'Brien | 17 | Daughter | — | Colorado |
| 27 | James O'Brien | 16 | Son | — | Colorado |
| 28 | Jack O'Brien | 10 | Son | — | Colorado |
| 29 | Mary C. O'Brien | 7 | Daughter | — | Colorado |
| 30 | Frank E. Crawley | 46 | Head | Farmer | Colorado |
| 31 | Ada Verona Crawley | 35 | Wife | — | Washington |
| 32 | Gladys N. Crawley | 4 | Daughter | — | Colorado |
| 33 | Jimmie L. Crawley | 0 | Son | — | Colorado |
| 34 | George Crawley | 58 | Brother | Farm Labor | England |
| 35 | Anna Baker | 74 | Head | — | Germany |
| 36 | George Baker | 41 | Son | — | Colorado |
| 37 | J. L. Horton | 81 | Head | — | Michigan |
| 38 | Lucy M. Horton | 81 | Wife | — | Missouri |
| 39 | Everett V. Waddell | 48 | Head | Laborer | Kansas |
| 40 | Lillian Waddell | 37 | Wife | — | England |
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)