RL
Robert Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Adams-County, Colorado
Our Model Tree links this Robert Lewis across the 1920, 1930 and 1940 US Censuses in Adams-County, Colorado (XGBoost, ~Confirmed), with identified parents Robert & Emma — first a head (b.~1901), then head of a 5-person household.
Age 39
b. ~1901
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, Colorado |
| Surname | Lewis |
| Given Name | Robert C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Occupation | Hay foreman |
| Industry | Stockyards |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 2264 |
| Highest Grade | H-4 |
| 1935 Residence | Colorado |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Hay Foreman |
| Township / Ward | Precinct 25 Derby |
| Est. Birth Year | ~1901 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Betty Lewis | Daughter | — | 9 | ~1931 |
| Robert Lewis | Head | — | 39 | ~1901 |
| Gay Lewis | Son | — | 6 | ~1934 |
| Robert Lewis | Son | — | 11 | ~1929 |
| Vera Lewis | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Denver, Colorado
Son, age 19
Denver, Colorado · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Robert C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Clerk |
| Industry | Stockyards |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Denver, Colorado
Head, age 29
Denver, Colorado · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Robert E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Day Foreman |
| Industry | Stockyards |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 1000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Adams-County, Colorado
Head, age 39
Adams-County, Colorado · implied b. ~1901 — 5 household members
| Surname | Lewis |
| Given Name | Robert C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | Adams |
| Occupation | Hay foreman |
| Industry | Stockyards |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 2264 |
| Highest Grade | H-4 |
| 1935 Residence | Colorado |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Lewis (~0.92 confidence) and mother Emma Lewis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Lewis
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Emma Lewis
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Lewis
Head · 1940 · age 39 · b. ~1901 · 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 — Adams-County, Colorado
Open full size
1940 US Federal Census — Adams-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00454-00523)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert C. Lewis THIS PERSON | 39 | Head | Hay Foreman | Illinois |
| 2 | Vera E. Lewis | 42 | Wife | — | Iowa |
| 3 | Robert E. Lewis | 11 | Son | — | Colorado |
| 4 | Betty Jane Lewis | 9 | Daughter | — | Colorado |
| 5 | Gay William Lewis | 6 | Son | — | Colorado |
| 6 | La Verne Mcbride | 29 | Head | Operator | Kansas |
| 7 | Pauline Mcbride | 25 | Wife | — | Kansas |
| 8 | Patricia Mcbride | 4 | Daughter | — | Colorado |
| 9 | George Morehead | 25 | Head | Gauger | Colorado |
| 10 | Bernice Morehead | 27 | Wife | — | Kansas |
| 11 | Dennis Morehead | 2 | Son | — | Colorado |
| 12 | Marshall Crockett | 31 | Head | Manufacturer | Colorado |
| 13 | Shirley Crockett | 20 | Wife | — | Ohio |
| 14 | William B. Trott | 35 | Head | Medical Technician | Louisiana |
| 15 | Esther Trott | 39 | Wife | — | Minnesota |
| 16 | Roscoe Pettit | 51 | Head | Draftsman | Iowa |
| 17 | Minnie Pettit | 39 | Wife | — | Colorado |
| 18 | Frank Jr. Pettit | 20 | Son | — | Colorado |
| 19 | Wayne E. Hawkins | 47 | Head | Meat Cutter | Colorado |
| 20 | Lillian Hawkins | 60 | Wife | Music Teacher | Colorado |
| 21 | John Aulino | 27 | Head | Farmer | Colorado |
| 22 | Anna Aulino | 22 | Wife | — | Colorado |
| 23 | Ira M. Rogers | 61 | Head | Farming | Indiana |
| 24 | Gaul De Julio | 26 | Head | Farmer | Italy |
| 25 | Dorothy De Julio | 20 | Wife | — | Colorado |
| 26 | Enidio Masca | 56 | Brother-in-law | — | Italy |
| 27 | Pete Masca | 16 | Brother-in-law | — | Colorado |
| 28 | Anorio Dandrea | 61 | Head | Farmer | Italy |
| 29 | Donata Dandrea | 58 | Wife | — | Italy |
| 30 | Mike Dandrea | 32 | Son | Farmer | Italy |
| 31 | Rita Dandrea | 32 | Daughter-in-law | — | New York |
| 32 | Henry Dandrea | 12 | Grandson | — | Colorado |
| 33 | James Dandrea | 11 | Grandson | — | Colorado |
| 34 | Rosaline Dandrea | 8 | Daughter-in-law | — | Colorado |
| 35 | Anthony Dandrea | 3 | Grandson | — | Colorado |
| 36 | Lewis Fanelli | 61 | Head | Farmer | Italy |
| 37 | Anna Fanelli | 24 | Daughter | Helper | Wyoming |
| 38 | Albert Fanelli | 16 | Son | Warehouse Man | New Jersey |
| 39 | Clara Fanelli | 17 | Daughter | — | Wyoming |
| 40 | Rosemarie Fanelli | 15 | Daughter | — | New Mexico |
Pedigree Summary
Robert
Gen 1 · 2 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)