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Joseph Jacobs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lancaster-County, Pennsylvania
Our Model Tree links this Joseph Jacobs across the 1920, 1930 and 1940 US Censuses in Lancaster-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Pennsylvania |
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Lancaster City |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Merchant |
| Industry | Jewelry Store |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Merchant |
| Township / Ward | Lancaster 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Carolyn Jacobs | Daughter | — | 19 | ~1921 |
| Joseph Jacobs | Head | — | 55 | ~1885 |
| Lily Jacobs | Spouse | — | 47 | ~1893 |
| Hannah Jacobs | Daughter | — | 17 | ~1923 |
Census Appearances
1920
Lancaster, Pennsylvania
Head, age 35
Lancaster, Pennsylvania · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | England |
| Mother's Birthplace | Frankford on Main |
| Occupation | Merchant |
| Industry | Paper & Twine |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Lancaster, Pennsylvania
Head, age 46
Lancaster, Pennsylvania · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 27 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Merchant |
| Industry | Dry Goods Store |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Lancaster-County, Pennsylvania
Head, age 55
Lancaster-County, Pennsylvania · implied b. ~1885 — 4 household members
| Surname | Jacobs |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Lancaster City |
| 1935 Residence (County) | Lancaster |
| Occupation | Merchant |
| Industry | Jewelry Store |
| Class of Worker | E |
| Hours Worked | 40 |
| Income (1939) | 5000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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.
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This person
Anchor record
Joseph Jacobs
Head · 1940 · age 55 · b. ~1885 · Pennsylvania
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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 — Lancaster-County, Pennsylvania
Open full size
1940 US Federal Census — Lancaster-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03532-00415)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth B. Harnish | 68 | Wife | — | Pennsylvania |
| 2 | Emma Mullegan | 28 | Servant | Servant | Pennsylvania |
| 3 | Elizabeth Mac Owen | 63 | Head | — | Pennsylvania |
| 4 | Clara M. Kelley | 60 | Lodger | — | Massachusetts |
| 5 | — | None | Extra Line - Misinformed | — | — |
| 6 | Frank W. Steigerwalt | 55 | Head | Chemist | Pennsylvania |
| 7 | Elizabeth M. Steigerwalt | 55 | Wife | — | Pennsylvania |
| 8 | Harris Elins | 46 | Head | Salesman Wholesale | Michigan |
| 9 | Gertrude Elins | 43 | Wife | — | Pennsylvania |
| 10 | Herbert S. Elins | 19 | Son | — | Pennsylvania |
| 11 | Robert M. Elins | 16 | Son | — | Pennsylvania |
| 12 | Scott M. Baker | 63 | Head | Mgr. & Treas. | Pennsylvania |
| 13 | Ellen B. Baker | 58 | Wife | — | Pennsylvania |
| 14 | Susan H. Baker | 27 | Daughter | — | Pennsylvania |
| 15 | Calvin M. Wenrich | 66 | Head | Physicist | Pennsylvania |
| 16 | Ivah Wenrich | 60 | Wife | — | Michigan |
| 17 | Mary S. Murphy | 29 | Servant | Servant | Pennsylvania |
| 18 | Catherine Kirchner | 55 | Head | — | Pennsylvania |
| 19 | Dorothy Kirchner | 30 | Daughter | Sec. | Pennsylvania |
| 20 | Robert Kirchner | 24 | Son | — | Pennsylvania |
| 21 | Richard Kirchner | 17 | Son | — | Pennsylvania |
| 22 | M. S. Carp | 71 | Head | Supervisor | Hungary |
| 23 | Yetta Carp | 68 | Wife | — | Hungary |
| 24 | D. J. Ehrhart | 58 | Head | Clergyman | Pennsylvania |
| 25 | Edna Ehrhart | 49 | Wife | — | Pennsylvania |
| 26 | Carl Ehrhart | 21 | Son | — | Pennsylvania |
| 27 | Jane Ehrhart | 20 | Daughter | — | Pennsylvania |
| 28 | John G. Aierstuck | 79 | Head | — | Pennsylvania |
| 29 | Anna Eliz. Aierstuck | 77 | Wife | — | Pennsylvania |
| 30 | Edward M. Kaufman | 70 | Head | Custodian | Pennsylvania |
| 31 | Margie Kaufman | 70 | Wife | Sec. | Pennsylvania |
| 32 | Mary A. Kaufman | 36 | Daughter | — | Pennsylvania |
| 33 | Walter Wolton | 29 | Head | Salesman | New York |
| 34 | Helen Wolton | 19 | Wife | — | Pennsylvania |
| 35 | Susanna Journey | 45 | Servant | Servant | Pennsylvania |
| 36 | Joseph Jacobs THIS PERSON | 55 | Head | Merchant | New York |
| 37 | Lily Jacobs | 47 | Wife | — | New York |
| 38 | Carolyn Jacobs | 19 | Daughter | — | Pennsylvania |
| 39 | Hannah Jacobs | 17 | Daughter | — | Pennsylvania |
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)