RB
Robert Black — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Durham-County, North Carolina
Our Model Tree links this Robert Black across the 1920, 1930 and 1940 US Censuses in Durham-County, North Carolina (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 7-person household.
Age 55
b. ~1885
Male
Head
Born: North Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Durham-County, North Carolina |
| Surname | Black |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | North Carolina |
| 1935 Residence (City) | Durham |
| 1935 Residence (County) | Durham |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | North Carolina |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
| Township / Ward | Durham City |
| Est. Birth Year | ~1885 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Lalie Black | Daughter | — | 45 | ~1895 |
| Robert Black | Head | — | 55 | ~1885 |
| Robert Mitchel | Other | — | 40 | ~1900 |
| Lola Sales | Other | — | 35 | ~1905 |
| John Sales | Other | — | 41 | ~1899 |
| Keana Rogers | Other | — | 18 | ~1922 |
| James Black | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Durham, North …
Head, age 30
Durham, North Carolina · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Occupation | Laborer |
| Industry | Street |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1930
Durham, North …
Head, age 45
Durham, North Carolina · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Age at First Marriage | 30 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Occupation | Watchman |
| Industry | Coal Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Veteran | No |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1940
Durham-County, North …
Head, age 55
Durham-County, North Carolina · implied b. ~1885 — 7 household members
| Surname | Black |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | North Carolina |
| 1935 Residence (City) | Durham |
| 1935 Residence (County) | Durham |
| Highest Grade | No 8 |
| 1935 Residence | North Carolina |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
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 Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Black
Head · 1940 · age 55 · b. ~1885 · North Carolina
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Durham-County, North Carolina
Open full size
1940 US Federal Census — Durham-County, North Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02902-00874)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arvenia Hicks | 34 | Head | Librarian | North Carolina |
| 2 | Sally Cannady | 25 | Lodger | Teacher | North Carolina |
| 3 | Phoebe Moore | 75 | Lodger | — | North Carolina |
| 4 | Martin Page | 35 | Head | Tobacco Factory | North Carolina |
| 5 | Ethel L. Page | 24 | Wife | House Keeper | North Carolina |
| 6 | Annie L. Page | 8 | Daughter | — | North Carolina |
| 7 | Martin L. Page | 5 | Son | — | North Carolina |
| 8 | Gloria L. Page | 2 | Daughter | — | North Carolina |
| 9 | Zula Cox | 44 | Mother-in-law | — | North Carolina |
| 10 | Hattie Jenkins | 50 | Head | Teacher | North Carolina |
| 11 | Jesse Mcbroom | 32 | Lodger | Clerk | North Carolina |
| 12 | Betty Foster | 40 | Lodger | Teacher | North Carolina |
| 13 | Irving Christmas | 45 | Head | Insurance Agent | North Carolina |
| 14 | Louis Christmas | 27 | Son | Agent | North Carolina |
| 15 | Joe Wade Christmas | 25 | Daughter | Teacher | North Carolina |
| 16 | Marcus Christmas | 24 | Son | — | North Carolina |
| 17 | Goodrich Christmas | 20 | Son | — | North Carolina |
| 18 | Rebecca Christmas | 18 | Daughter | — | North Carolina |
| 19 | Henrietta Christmas | 16 | Daughter | — | North Carolina |
| 20 | Stephen Christmas | 14 | Son | — | North Carolina |
| 21 | Lottie Faulcon | 65 | Mother-in-law | — | North Carolina |
| 22 | Palveira Watson | 27 | Head | Housekeeper | North Carolina |
| 23 | Helen Betts | 38 | Head | Tobacco Factory | North Carolina |
| 24 | Lucy Deshmount | 22 | Lodger | — | North Carolina |
| 25 | Mary Glover | 23 | Lodger | Maid | North Carolina |
| 26 | Arthur Mccallum | 46 | Head | Tobacco Factory | North Carolina |
| 27 | Odessa Mccallum | 30 | Wife | Tobacco Factory | North Carolina |
| 28 | Mabel Hodge | 20 | Lodger | Tobacco Factory | North Carolina |
| 29 | Carlton Mallum | 19 | Lodger | — | North Carolina |
| 30 | Ruth Branch | 18 | Lodger | — | North Carolina |
| 31 | Willie Ford | 45 | Head | Janitor | North Carolina |
| 32 | Mamie Ford | 40 | Wife | Teacher | North Carolina |
| 33 | John L. Ford | 18 | Son | — | North Carolina |
| 34 | Robert Black THIS PERSON | 55 | Head | — | North Carolina |
| 35 | James E. Black | 60 | Wife | Housekeeper | North Carolina |
| 36 | Lalie Black | 45 | Daughter | Tobacco Factory | North Carolina |
| 37 | Robert Mitchel | 40 | Lodger | Tobacco Factory | North Carolina |
| 38 | John Sales | 41 | Lodger | Teacher | North Carolina |
| 39 | Lola Sales | 35 | Lodger | Teacher | North Carolina |
| 40 | Keana Rogers | 18 | Lodger | — | North Carolina |
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)