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John Jacobs — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this John Jacobs across the 1920, 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Steve & Stephen — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Jacobs |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Patton Boro |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Occupation | Mixer |
| Industry | Coal Co. |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 420 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Mixer |
| Township / Ward | Patton Boro |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| June Jacobs | Daughter | — | 15 | ~1925 |
| Stephen Jacobs | Head | — | 50 | ~1890 |
| John Jacobs | Son | — | 22 | ~1918 |
| Annie Jacobs | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Cambria, Pennsylvania
Son, age 2
Cambria, Pennsylvania · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackobs |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Cambria, Pennsylvania
Son, age 12
Cambria, Pennsylvania · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Son, age 22
Cambria-County, Pennsylvania · implied b. ~1918 — 4 household members
| Surname | Jacobs |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Patton Boro |
| 1935 Residence (County) | Cambria |
| Occupation | Mixer |
| Industry | Coal Co. |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 420 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 John Jacobs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Steve Jackobs (~0.92 confidence) and father Stephen Jacobs (~0.92 confidence) and mother Anna Jacobs (~0.92 confidence) and mother Anna Jackobs (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Steve Jackobs
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Stephen Jacobs
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Anna Jacobs
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Anna Jackobs
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Jacobs
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
June Jacobs
Sibling · 1940 · age 15
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 — Cambria-County, Pennsylvania
Open full size
1940 US Federal Census — Cambria-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03456-00449)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida Hickox | 52 | Head | Seamstress | Pennsylvania |
| 42 | Martin Bunk | 68 | Head | — | Austria |
| 43 | Mary X Bunk | 68 | Wife | — | Prussia |
| 44 | Charles Solomon | 60 | Head | Proprietor | Syria |
| 45 | Anna X Solomon | 53 | Wife | — | Syria |
| 46 | Elizabeth Solomon | 23 | Daughter | Typist | Pennsylvania |
| 47 | Milton Solomon | 21 | Son | Clerk | Pennsylvania |
| 48 | Bertha Solomon | 19 | Daughter | — | Pennsylvania |
| 49 | June Solomon | 17 | Daughter | — | Pennsylvania |
| 50 | Louis Commons | 67 | Head | Laborer | England |
| 51 | Frances X Commons | 64 | Wife | — | England |
| 52 | Abraham Melanese | 50 | Head | Laborer | Italy |
| 53 | Rose X Melanese | 38 | Wife | — | Italy |
| 54 | Mary Melanese | 13 | Daughter | — | Pennsylvania |
| 55 | Alfred Melanese | 11 | Son | — | Pennsylvania |
| 56 | Wilda Melanese | 8 | Daughter | — | Pennsylvania |
| 57 | Diana Melanese | 6 | Daughter | — | Pennsylvania |
| 58 | Loraine Melanese | 3 | Daughter | — | Pennsylvania |
| 59 | Harry Humphrey | 31 | Head | Laborer | Pennsylvania |
| 60 | Adeline X Humphrey | 30 | Wife | — | Pennsylvania |
| 61 | Jean Humphrey | 8 | Daughter | — | Pennsylvania |
| 62 | Kenneth Humphrey | 7 | Son | — | Pennsylvania |
| 63 | Stephen Jacobs | 50 | Head | Laborer | Pennsylvania |
| 64 | Annie X Jacobs | 49 | Wife | Seamstress | Pennsylvania |
| 65 | John A. Jacobs THIS PERSON | 22 | Son | Mixer | Pennsylvania |
| 66 | June Jacobs | 15 | Daughter | — | Pennsylvania |
| 67 | Pauline X Paravich | 57 | Head | — | Pennsylvania |
| 68 | Paul Paravich | 25 | Son | Laborer | Pennsylvania |
| 69 | Edward Paravich | 21 | Son | Laborer | Pennsylvania |
| 70 | Thomas Paravich | 20 | Son | Laborer | Pennsylvania |
| 71 | John Cumberland | 76 | Head | — | Italy |
| 72 | Mary Cumberland | 74 | Wife | — | Italy |
| 73 | Peter Cumberland | 46 | Son | Laborer | Pennsylvania |
| 74 | Mildred Cumberland | 36 | Daughter-in-law | Seamstress | Pennsylvania |
| 75 | Dona X Cumberland | 18 | Granddaughter | — | Pennsylvania |
| 76 | Harry Warner | 42 | Head | Salesman | Pennsylvania |
| 77 | Myrtle X Warner | 33 | Wife | — | Pennsylvania |
| 78 | Lavern Warner | 11 | Daughter | — | Pennsylvania |
| 79 | Thomas X Lamont | 31 | Head | Laborer | Pennsylvania |
| 80 | Frances Lamont | 28 | Wife | — | Pennsylvania |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)