RC
Robert Chambers — 1940 US Census Record
Model Tree available1940 United States Federal Census · Madison-County, Indiana
Our Model Tree links this Robert Chambers across the 1910, 1920, 1930 and 1940 US Censuses in Madison-County, Indiana (XGBoost, ~Confirmed), with identified parents Clarence & Harvey — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Indiana |
| Surname | Chambers |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Anderson |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Filling Station Attendant |
| Industry | Oil & Service |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 711 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Filling Station Attendant |
| Township / Ward | Anderson |
| Est. Birth Year | ~1909 |
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 Chambers | Head | — | 31 | ~1909 |
| Juanita Chambers | Spouse | — | 24 | ~1916 |
| Sonja Chambers | Daughter | — | 4 | ~1936 |
Census Appearances
1910
Madison, Indiana
Son, age 1
Madison, Indiana · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Madison, Indiana
Son, age 11
Madison, Indiana · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Madison, Indiana
Son, age 21
Madison, Indiana · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Madison-County, Indiana
Head, age 31
Madison-County, Indiana · implied b. ~1909 — 3 household members
| Surname | Chambers |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Anderson |
| 1935 Residence (County) | Madison |
| Occupation | Filling Station Attendant |
| Industry | Oil & Service |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 711 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Chambers across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clarence Chambers (~0.92 confidence) and father Harvey Chambers (~0.92 confidence) and father James Chambers (~0.92 confidence) and mother Bolen Chambers (~0.92 confidence) and mother Emma Chambers (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Chambers
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Harvey Chambers
b. ~1874
Source father
● Household
· direct · ~0.92
Father
James Chambers
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Bolen Chambers
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Emma Chambers
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Chambers
Head · 1940 · age 31 · b. ~1909 · Indiana
★ 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 — Madison-County, Indiana
Open full size
1940 US Federal Census — Madison-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01072-00585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harriet Gittenberger | 45 | Head | Haircut | Indiana |
| 2 | W. H. Ickes | 74 | Head | — | Penn |
| 3 | Villa Ickes | 71 | Wife | — | Indiana |
| 4 | Robert Williamson | 23 | Head | Book Keeper | Indiana |
| 5 | Glenna Williamson | 22 | Wife | Laborer | Indiana |
| 6 | Lewis Robey | 32 | Head | Linotype Operator | Indiana |
| 7 | Bernice Robey | 28 | Wife | Stenographer | Indiana |
| 8 | Alvin C. Parson | 47 | Head | Salesman | Georgia |
| 9 | Helen J. Parson | 42 | Wife | Abstracting | Indiana |
| 10 | Robert Chambers THIS PERSON | 31 | Head | Filling Station Attendant | Indiana |
| 11 | Juanita Chambers | 24 | Wife | Saleswoman | Kentucky |
| 12 | Sonja Lee Chambers | 4 | Daughter | — | Indiana |
| 13 | Maria Enperly | 77 | Head | — | Indiana |
| 14 | Edward Schmidt | 60 | Head | Manager | Indiana |
| 15 | Cora Schmidt | 59 | Wife | Baker | Indiana |
| 16 | Ethel Henry | 46 | Head | — | Indiana |
| 17 | Robert Mcgrankan | 30 | Head | Salesman | Indiana |
| 18 | Rita Mcgrankan | 29 | Wife | — | Indiana |
| 19 | Tommy Mcgrankan | 8 | Son | — | Indiana |
| 20 | Leda Marie Mcgrankan | 4 | Daughter | — | Indiana |
| 21 | Tyler Carman | 68 | Head | — | Kentucky |
| 22 | Fannie Carman | 61 | Wife | — | Kentucky |
| 23 | Ursula Carman | 28 | Daughter | Laborer | Oregon |
| 24 | James M. Cloud Carman | 27 | Son | Shipping Clerk | Oregon |
| 25 | Georgia Carman | 26 | Daughter | Laborer | Ore |
| 26 | Babe Kelly | 77 | Head | — | Ohio |
| 27 | Harry Kelly | 53 | Son | Building Repair | Indiana |
| 28 | J. Armand Pace | 27 | Head | Auto Body | Kentucky |
| 29 | Rachel Pace | 26 | Wife | — | Kentucky |
| 30 | Irvin Hoffman | 64 | Head | Manager & Barber | Indiana |
| 31 | Rose Hoffman | 64 | Wife | — | Indiana |
| 32 | Frank Taylor | 28 | Lodger | Decorator | Indiana |
| 33 | Benjamin R. Wright | 70 | Head | — | Indiana |
| 34 | Ella Wright | 65 | Wife | — | Ohio |
| 35 | Mary M. Bush | 60 | Head | — | Illinois |
| 36 | Loraine Bush | 21 | Daughter | Operator | Illinois |
| 37 | Tom J. Costello | 58 | Head | Dentist | Indiana |
| 38 | Grace Costello | 52 | Sister | Secretary & Treasurer | Indiana |
| 39 | Sidney Grieb | 39 | Head | Draftsman | Penn |
| 40 | Edna Grieb | 42 | Wife | — | New Jersey |
Pedigree Summary
Robert
Gen 1 · 5 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)