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Robert Lambert — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vanderburgh-County, Indiana
Our Model Tree links this Robert Lambert across the 1920, 1930 and 1940 US Censuses in Vanderburgh-County, Indiana (XGBoost, ~Confirmed), with identified parents Ben — first a head (b.~1908), then head of a 5-person household.
Age 32
b. ~1908
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Vanderburgh-County, Indiana |
| Surname | Lambert |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Some house |
| 1935 Residence (County) | Some house |
| Additional Details | |
| Occupation | Recreation Leader |
| Industry | WPA Recreation Proj |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 665 |
| Highest Grade | No 4 |
| 1935 Residence | Some house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Recreation Leader |
| Township / Ward | Evansville |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Milton Lambert | Son | — | 10 | ~1930 |
| Allene Lambert | Daughter | — | 9 | ~1931 |
| Modena Lambert | Spouse | — | 30 | ~1910 |
| Robert Lambert | Head | — | 32 | ~1908 |
| Robert Lambert | Son | — | 11 | ~1929 |
Census Appearances
1920
Vanderburgh, Indiana
Son, age 12
Vanderburgh, Indiana · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Vanderburgh, Indiana
Head, age 22
Vanderburgh, Indiana · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 20 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 18 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Vanderburgh-County, Indiana
Head, age 32
Vanderburgh-County, Indiana · implied b. ~1908 — 5 household members
| Surname | Lambert |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Some house |
| 1935 Residence (County) | Some house |
| Occupation | Recreation Leader |
| Industry | WPA Recreation Proj |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 665 |
| Highest Grade | No 4 |
| 1935 Residence | Some house |
| 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 Robert Lambert across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ben Lambert (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ben Lambert
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Lambert
Head · 1940 · age 32 · b. ~1908 · 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 — Vanderburgh-County, Indiana
Open full size
1940 US Federal Census — Vanderburgh-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01113-00300)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lottie Jones | 64 | Head | — | Indiana |
| 42 | Anzelle Bumpas | 41 | Head | Servant | Kentucky |
| 43 | Leonard Bonk | 11 | Son | — | Indiana |
| 44 | — | None | — | — | — |
| 45 | Agnes Johnson | 65 | Head | — | Indiana |
| 46 | Mamie Ford | 31 | Head | — | Kentucky |
| 47 | Malinda Churchill | 74 | Partner | — | Kentucky |
| 48 | Francis Talbott | 63 | Head | Seamstress | Kentucky |
| 49 | Earnest Spencer | 39 | Nephew | Salesman | Kentucky |
| 50 | Gilbert Lewis | 59 | Head | Lumber Stacker | Virginia |
| 51 | Goldie Lewis | 43 | Wife | — | Kentucky |
| 52 | Laurence Merritt | 17 | Adopted son | New Worker | Indiana |
| 53 | Wm Merritt | 13 | Adopted son | — | Indiana |
| 54 | Melvina Hatchett | 34 | Sister in law | Housemaid | Kentucky |
| 55 | John Hatchett | 17 | Nephew | New Worker | Kentucky |
| 56 | Claude Mccray | 37 | Nephew | Common Labor | Kentucky |
| 57 | Mary Mccray | 27 | Niece | Housemaid | Kentucky |
| 58 | Herbert Stepp | 30 | Head | Concrete Mixer | Kentucky |
| 59 | Glory Stepp | 7 | Daughter | — | Indiana |
| 60 | Jennie Dulin | 57 | Mother | — | Kentucky |
| 61 | Chas Davis | 55 | Head | Common Labor | Georgia |
| 62 | Bessie Davis | 50 | Wife | — | Tennessee |
| 63 | Lucille Harper | 37 | Daughter | — | Tennessee |
| 64 | Henry Harper | 16 | Grandson | — | Tennessee |
| 65 | Dean Harper | 14 | Grandson | — | Tennessee |
| 66 | Amanda Fly | 85 | Boarder | — | Mississippi |
| 67 | Lattie Coleman | 69 | Head | — | Indiana |
| 68 | Joseph Hawkins | 42 | Head | Servant | Louisiana |
| 69 | Lucille Hawkins | 40 | Wife | Servant | Kentucky |
| 70 | Lodie Hawkins | 6 | Daughter | — | Kentucky |
| 71 | Clifton Fields | 48 | Head | School Teacher | Kentucky |
| 72 | Clarence Fields | 16 | Son | — | Indiana |
| 73 | Harold Fields | 14 | Son | — | Indiana |
| 74 | Gardner Fields | 12 | Son | — | Indiana |
| 75 | Sarah Van Dyke | 65 | Mother | — | Tennessee |
| 76 | Robert Lambert THIS PERSON | 32 | Head | Recreation Leader | Kentucky |
| 77 | Modena Lambert | 30 | Wife | — | Kentucky |
| 78 | Robert Jr Lambert | 11 | Son | — | Indiana |
| 79 | Milton Lambert | 10 | Son | — | Indiana |
| 80 | Allene Lambert | 9 | Daughter | — | Indiana |
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)