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Robert Jacobs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Robert Jacobs across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 6-person household.
Age 56
b. ~1884
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Foreman |
| Industry | Forge Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Foreman |
| Township / Ward | Detroit |
| Est. Birth Year | ~1884 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Helen Jacobs | Spouse | — | 52 | ~1888 |
| Robert Rae | Other | — | 1 | ~1939 |
| Isabel Rae | Daughter | — | 29 | ~1911 |
| Robert Jacobs | Head | — | 56 | ~1884 |
| Revere Jacobs | Son | — | 32 | ~1908 |
| Thomas Rae | Other | — | 30 | ~1910 |
Census Appearances
1920
Wayne, Michigan
Head, age 36
Wayne, Michigan · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Foreman |
| Industry | Forge Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Wayne, Michigan
Head, age 46
Wayne, Michigan · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Foreman |
| Industry | Auto Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Wayne-County, Michigan
Head, age 56
Wayne-County, Michigan · implied b. ~1884 — 6 household members
| Surname | Jacobs |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Occupation | Foreman |
| Industry | Forge Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Jacobs
Head · 1940 · age 56 · b. ~1884 · Michigan
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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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01881-00760)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gray Jane Little | 12 | Lodger | — | New York |
| 2 | Robert Jacobs THIS PERSON | 56 | Head | Foreman | Pennsylvania |
| 3 | Helen Jacobs | 52 | Wife | — | Pennsylvania |
| 4 | Revere P. Jacobs | 32 | Son | Clerk | Pennsylvania |
| 5 | Isabel R. Rae | 29 | Daughter | — | Pennsylvania |
| 6 | Thomas Rae | 30 | Son in law | Salesman | Scotland |
| 7 | Robert Rae | 1 | Grandchild | — | Michigan |
| 8 | Dorothy Thiel | 35 | Head | — | Indiana |
| 9 | Betty Jean Thiel | 15 | Daughter | — | Michigan |
| 10 | Grafton Thiel | 14 | Daughter | — | Michigan |
| 11 | Charles Thiel | 12 | Son | — | Michigan |
| 12 | Donald Thiel | 6 | Son | — | Michigan |
| 13 | Geo. A. Arnold | 48 | Head | Traffic Mgr | New York |
| 14 | Helen Arnold | 42 | Wife | — | Pennsylvania |
| 15 | Geo. A. Jr. Arnold | 21 | Son | Promotion Work | Michigan |
| 16 | Ann Arnold | 20 | Son | — | Michigan |
| 17 | Shirley Arnold | 15 | Daughter | — | Michigan |
| 18 | Helen Jane Arnold | 7 | Daughter | — | Michigan |
| 19 | Leslie Redman | 37 | Head | Salesman | England |
| 20 | Edith Redman | 31 | Wife | — | Scotland |
| 21 | Doreen Redman | 10 | Daughter | — | Michigan |
| 22 | Donald Redman | 7 | Son | — | Michigan |
| 23 | Evelyn White | 29 | Lodger | — | Michigan |
| 24 | Leonard Kelsch | 45 | Head | Stenographer | Michigan |
| 25 | Grace Kelsch | 39 | Wife | — | Michigan |
| 26 | Edward Kelsch | 22 | Son | Reproduction | Michigan |
| 27 | Richard Kelsch | 15 | Son | — | Michigan |
| 28 | Robert Kelsch | 13 | Son | — | Michigan |
| 29 | Trella Kelsch | 11 | Daughter | — | Michigan |
| 30 | William Kelsch | 9 | Son | — | Michigan |
| 31 | Samuel Parker | 46 | Head | Shoe Repair | Poland |
| 32 | Rose Parker | 43 | Wife | — | Austria |
| 33 | Clarence Dobbins | 54 | Lodger | Mechanic | Ohio |
| 34 | Beatrice Bourlier | 30 | Lodger | — | Michigan |
| 35 | Ruth Singerman | 32 | Lodger | Secretary | Michigan |
| 36 | Della Grilka | 52 | Head | — | Michigan |
| 37 | Virginia Grilka | 20 | Daughter | Seamstress | Michigan |
| 38 | Geraldine Grilka | 17 | Daughter | — | Michigan |
| 39 | John Grilka | 46 | Head | Punch Press Op. | Michigan |
| 40 | Athalia Grilka | 17 | Daughter | — | Michigan |
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)