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Joseph Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Joseph Jacobs across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Joseph & Martha — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Assistant deliverer |
| Industry | Delivery company |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Assistant Deliverer |
| Township / Ward | Detroit |
| Est. Birth Year | ~1914 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Martha Jacobs | Head | — | 49 | ~1891 |
| Patricia Jacobs | Daughter | — | 7 | ~1933 |
| Donald Jacobs | Son | — | 10 | ~1930 |
| Martha Jacobs | Daughter | — | 12 | ~1928 |
| Joseph Jacobs | Son | — | 26 | ~1914 |
Census Appearances
1920
Wayne, Michigan
Son, age 5
Wayne, Michigan · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Joseph E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Son, age 16
Wayne, Michigan · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Joseph J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 26
Wayne-County, Michigan · implied b. ~1914 — 5 household members
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Occupation | Assistant deliverer |
| Industry | Delivery company |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Joseph Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Jacobs (~0.92 confidence) and mother Martha Jacobs (~0.92 confidence) and mother Martha Jacobs (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Jacobs
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Martha Jacobs
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Martha Jacobs
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Jacobs
Son · 1940 · age 26 · b. ~1914 · Michigan
★ You are viewing this record
Sibling
Patricia Jacobs
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Jacobs
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Jacobs
Sibling · 1940 · age 12
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01875-00885)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Talton, John Corté | 19 | Nephew | Construction Laborer | Illinois |
| 42 | Walter Denny | 42 | Head | Passenger Representative | Michigan |
| 43 | Mae O. Denny | 35 | Wife | — | Kentucky |
| 44 | George T. Denny | 12 | Son | — | Michigan |
| 45 | Patricia M. Denny | 9 | Daughter | — | Michigan |
| 46 | John Kahl | 53 | Head | Salesman | Illinois |
| 47 | Anne Q. Kahl | 47 | Wife | — | Illinois |
| 48 | Raymond Steinbeiss | 29 | Nephew | Apprentice Blue Print Machine Operator | Illinois |
| 49 | Martha Jacobs | 49 | Head | — | Michigan |
| 50 | Joseph Jacobs THIS PERSON | 26 | Son | Assistant Deliverer | Michigan |
| 51 | Martha A. Jacobs | 12 | Daughter | — | Michigan |
| 52 | Donald Jacobs | 10 | Son | — | Michigan |
| 53 | Patricia Jacobs | 7 | Daughter | — | Michigan |
| 54 | Mark Dean | 38 | Head | Foreman | New York |
| 55 | Mildred Dean | 36 | Wife | Trained Nurse | Michigan |
| 56 | Mona Al. Dean | 12 | Daughter | — | Michigan |
| 57 | Wylie Berger | 57 | Head | Foreman | Ohio |
| 58 | Myrtle Berger | 47 | Wife | — | Tennessee |
| 59 | James R. Murray | 70 | Head | — | Canada |
| 60 | Emma Murray | 72 | Wife | — | England |
| 61 | Lloyd G. Baty | 54 | Son-in-law | Machinist | Michigan |
| 62 | Agnes Baty | 47 | Daughter | Complaint Clerk | Michigan |
| 63 | Wallace Garrett | 30 | Head | Printer | New York |
| 64 | Dorothy Garrett | 27 | Wife | — | Michigan |
| 65 | Barbara Garrett | 12 | Daughter | — | Michigan |
| 66 | Ralph Baker | 30 | Head | Installer | Michigan |
| 67 | Margaret A. Baker | 27 | Wife | — | Pennsylvania |
| 68 | Nancy A. Baker | 4 | Daughter | — | Michigan |
| 69 | Daniel Baker | 0 | Son | — | Michigan |
| 70 | Lydia Baker | 62 | Mother | — | Michigan |
| 71 | Henry Morgan | 40 | Head | Policeman | New York |
| 72 | Lillian A. Morgan | 40 | Wife | — | England |
| 73 | Lois M. Morgan | 11 | Daughter | — | Michigan |
| 74 | Elinor Morgan | 9 | Daughter | — | Michigan |
| 75 | Francis Mcmahon | 36 | Head | Teacher | Pennsylvania |
| 76 | Marjorie Mcmahon | 35 | Wife | — | Pennsylvania |
| 77 | Lambert Mcmahon | 13 | Son | — | Pennsylvania |
| 78 | Gerald Mcmahon | 11 | Son | — | Pennsylvania |
| 79 | Leo J. Mccallion | 34 | Lodger | Credit Clerk | Pennsylvania |
Pedigree Summary
Joseph + 3 siblings
Gen 1 · 3 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)