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Robert Oliver — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Robert Oliver across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Oliver |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Sparrows Point |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Skill laborer |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Skill Laborer |
| Township / Ward | Sparrows Point |
| Est. Birth Year | ~1920 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Oliver | Daughter | — | 16 | ~1924 |
| Charles Oliver | Son | — | 18 | ~1922 |
| Donald Oliver | Son | — | 6 | ~1934 |
| Repass Fears | Other | — | 38 | ~1902 |
| Robert Oliver | Son | — | 20 | ~1920 |
| John Oliver | Other | — | 40 | ~1900 |
| Carnell Oliver | Son | — | 12 | ~1928 |
| Hattie Oliver | Spouse | — | 40 | ~1900 |
| James Oliver | Son | — | 14 | ~1926 |
| Willis Oliver | Head | — | 52 | ~1888 |
Census Appearances
1930
Baltimore, Maryland
Son, age 10
Baltimore, Maryland · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Oliver |
| Given Name | Rogers |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 20
Baltimore-County, Maryland · implied b. ~1920 — 10 household members
| Surname | Oliver |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Sparrows Point |
| 1935 Residence (County) | Baltimore |
| Occupation | Skill laborer |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Oliver across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Oliver
Son · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
Donald Oliver
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carnell Oliver
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Oliver
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Oliver
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Oliver
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01507-00564)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Luke Smith | 37 | Lodger | Laborer | North Carolina |
| 2 | Truly Oliver | 58 | Head | Skill Laborer | Virginia |
| 3 | Lulu Oliver | 47 | Wife | Laborer | Maryland |
| 4 | James Folkes | 38 | Lodger | Laborer | Virginia |
| 5 | Nelson Mccormick | 49 | Lodger | Laborer | North Carolina |
| 6 | Langston Turner | 39 | Head | Laborer | Virginia |
| 7 | Evelyn Turner | 34 | Wife | Laborer | Virginia |
| 8 | Bernard Turner | 12 | Son | — | Maryland |
| 9 | Lorraine Turner | 10 | Daughter | — | Maryland |
| 10 | Gwendolyn Turner | 9 | Daughter | — | Maryland |
| 11 | Meshack Mosley | 38 | Lodger | Laborer | Virginia |
| 12 | Plum Morris | 40 | Lodger | Laborer | Virginia |
| 13 | Earnest Glenn | 43 | Head | Laborer | South Carolina |
| 14 | Sallie Glenn | 37 | Wife | Laborer | South Carolina |
| 15 | Randolph Jones | 37 | Lodger | Laborer | South Carolina |
| 16 | George Prarroit|Prarroit | 42 | Lodger | Laborer | South Carolina |
| 17 | Arthur Cheatham | 28 | Lodger | Laborer | South Carolina |
| 18 | Willis Oliver | 52 | Head | Laborer | Virginia |
| 19 | Hattie Oliver | 40 | Wife | Laborer | Virginia |
| 20 | Robert Oliver THIS PERSON | 20 | Son | Skill Laborer | Maryland |
| 21 | Charles Oliver | 18 | Son | New Worker | Maryland |
| 22 | Dorothy Oliver | 16 | Daughter | — | Maryland |
| 23 | James E. Oliver | 14 | Son | — | Maryland |
| 24 | Carnell Oliver | 12 | Son | — | Maryland |
| 25 | Donald Oliver | 6 | Son | — | Maryland |
| 26 | John H. Oliver | 40 | Nephew | Skill Laborer | Virginia |
| 27 | Repass Fears | 38 | Lodger | Laborer | Virginia |
| 28 | Gilles Mickey | 42 | Head | Skill Laborer | Virginia |
| 29 | Minerva Mickey | 39 | Wife | Laborer | North Carolina |
| 30 | Addie Hart | 69 | Mother-in-law | — | North Carolina |
| 31 | Howard Hart | 10 | Nephew | — | North Carolina |
| 32 | Alexander Jackson | 30 | Lodger | Skill Laborer | North Carolina |
| 33 | Wilton Powell | 24 | Lodger | Laborer | Virginia |
| 34 | Ryal Craigway | 39 | Head | Skill Laborer | Virginia |
| 35 | Minnie Craigway | 34 | Wife | Laborer | Virginia |
| 36 | Rosa Craigway | 17 | Daughter | Domestic Help | Virginia |
| 37 | Alberta Craigway | 16 | Daughter | — | Virginia |
| 38 | Ryal Craigway | 11 | Son | — | Maryland |
| 39 | Bernice Craigway | 7 | Daughter | — | Maryland |
| 40 | Coleman Cosby | 63 | Head | Laborer | Virginia |
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)