RE
Robert Evans — 1940 US Census Record
Model Tree available1940 United States Federal Census · Arapahoe-County, Colorado
Our Model Tree links this Robert Evans across the 1920, 1930 and 1940 US Censuses in Arapahoe-County, Colorado (XGBoost, ~Confirmed), with identified parents George — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Arapahoe-County, Colorado |
| Surname | Evans |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | South Precinct 4 |
| 1935 Residence (County) | Arapahoe |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Farmer |
| Township / Ward | South Precinct 4 |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Evans | Head | — | 32 | ~1908 |
| Melvin Evans | Son | — | 1 | ~1939 |
| Fern Evans | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Adams, Colorado
Son, age 12
Adams, Colorado · implied b. ~1908 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Evans |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Adams, Colorado
Son, age 22
Adams, Colorado · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Evans |
| Given Name | Robert D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Minnesota |
| Occupation | Laborer |
| Industry | Oil station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Arapahoe-County, Colorado
Head, age 32
Arapahoe-County, Colorado · implied b. ~1908 — 3 household members
| Surname | Evans |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | South Precinct 4 |
| 1935 Residence (County) | Arapahoe |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 Robert Evans across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Evans (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Evans
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Evans
Head · 1940 · age 32 · b. ~1908 · 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 — Arapahoe-County, Colorado
Open full size
1940 US Federal Census — Arapahoe-County, Colorado
Page Contents
5 people indexed on this census page (nara:1940:m-t0627-00455-00925)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Madeline Evans | 17 | Daughter | — | Colorado |
| 42 | Leora Evans | 2 | Daughter | — | Colorado |
| 43 | Robert Evans THIS PERSON | 32 | Head | Farmer | Colorado |
| 44 | Fern Evans | 25 | Wife | — | Missouri |
| 45 | Melvin Evans | 1 | Son | — | Colorado |
Pedigree Summary
Robert
Gen 1 · 1 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)