JC
James Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chaffee-County, Colorado
Our Model Tree links this James Clark across the 1920, 1930 and 1940 US Censuses in Chaffee-County, Colorado (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chaffee-County, Colorado |
| Surname | Clark |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Salida City |
| 1935 Residence (County) | Chaffee |
| Additional Details | |
| Occupation | Artist Commercial |
| Industry | Engraving Plant |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 1700 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Artist Commercial |
| Township / Ward | Salida City |
| Est. Birth Year | ~1913 |
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 Clark | Head | — | 57 | ~1883 |
| James Clark | Son | — | 27 | ~1913 |
| Cora Clark | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Chaffee, Colorado
Son, age 7
Chaffee, Colorado · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | James C |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Chaffee, Colorado
Son, age 17
Chaffee, Colorado · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | James B. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Chaffee-County, Colorado
Son, age 27
Chaffee-County, Colorado · implied b. ~1913 — 3 household members
| Surname | Clark |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Salida City |
| 1935 Residence (County) | Chaffee |
| Occupation | Artist Commercial |
| Industry | Engraving Plant |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 1700 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Clark (~0.92 confidence) and father James Clark (~0.92 confidence) and mother Cora Clark (~0.92 confidence) and mother Cora Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Clark
b. ~1883
Source father
● Household
· direct · ~0.92
Father
James Clark
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Cora Clark
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Cora Clark
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Clark
Son · 1940 · age 27 · b. ~1913 · 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 — Chaffee-County, Colorado
Open full size
1940 US Federal Census — Chaffee-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00458-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence E. Towell | 40 | Head | Locomotive Crane Operator | Missouri |
| 2 | Sarah Towell | 39 | Wife | — | Illinois |
| 3 | Clinton Rutherford | 15 | Adopted Son | — | Colorado |
| 4 | Wesley E. Powell | 14 | Son | — | Illinois |
| 5 | Hugh F. Martin | 33 | Head | Forest Ranger | Connecticut |
| 6 | Helen Martin | 35 | Wife | — | Nebraska |
| 7 | Sonja Martin | 1 | Daughter | — | Colorado |
| 8 | John Cox | 57 | Head | Laborer | Illinois |
| 9 | Anna Cox | 65 | Sister | — | England |
| 10 | James P. Clark | 57 | Head | Machinist | Ohio |
| 11 | Cora Clark | 52 | Wife | — | Missouri |
| 12 | James Clark THIS PERSON | 27 | Son | Artist Commercial | Colorado |
| 13 | Benjiman Lunon | 50 | Head | Locomotive Fireman | Colorado |
| 14 | Elsie Lunon | 48 | Wife | — | Oklahoma |
| 15 | Harold Lunon | 16 | Son | — | Colorado |
| 16 | Theodore Jacobs | 35 | Head | Life Insurance Salesman | Colorado |
| 17 | Geneve Jacobs | 36 | Wife | School Teacher | Missouri |
| 18 | Alice Evans | 31 | Lodger | School Teacher | Missouri |
| 19 | Christopher R. Wilson | 61 | Head | Locomotive Engineer | Missouri |
| 20 | Lottie Wilson | 53 | Wife | — | Washington |
| 21 | Dorthy Wilson | 14 | Daughter | — | Colorado |
| 22 | Edward F. Bradbury | 36 | Head | Truck Driver | Colorado |
| 23 | Mary Bradbury | 35 | Wife | — | Colorado |
| 24 | Mary Ellen Bradbury | 15 | Daughter | — | Colorado |
| 25 | Edward Bradbury | 10 | Son | — | Colorado |
| 26 | Samuel Bradbury | 9 | Son | — | Colorado |
| 27 | Margaret Bradbury | 7 | Daughter | — | Colorado |
| 28 | Ace Bradbury | 4 | Son | — | Colorado |
| 29 | Patricia Bradbury | 3 | Daughter | — | Colorado |
| 30 | Morgan Bradbury | 1 | Son | — | Colorado |
| 31 | W. H. Millard | 55 | Head | Locomotive Carpenter | New York |
| 32 | Lettie Millard | 59 | Wife | — | Illinois |
| 33 | Ida Childs | 56 | Sister in law | Housekeeper | Illinois |
| 34 | James D. Wolton | 69 | Head | Farming | Ohio |
| 35 | Elizabeth Wolton | 65 | Wife | — | England |
| 36 | Robert Wolton | 33 | Son | Miner Metal | Colorado |
| 37 | Glesner, John Murphy | 48 | Head | Engineer | Colorado |
| 38 | Jane Murphy | 38 | Wife | — | Colorado |
| 39 | Mary Murphy | 17 | Daughter | — | Colorado |
| 40 | Gladys Murphy | 15 | Daughter | — | Colorado |
Pedigree Summary
James
Gen 1 · 4 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)