MJ
Mary Jacobs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Mary Jacobs across the 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 12-person household.
Age 13
b. ~1927
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Jacobs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Susquehanna Township |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Susquehanna Township |
| Est. Birth Year | ~1927 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Betty Jacobs | Daughter | — | 6 | ~1934 |
| Genevieve Jacobs | Daughter | — | 14 | ~1926 |
| Dorothy Jacobs | Daughter | — | 4 | ~1936 |
| Mary Jacobs | Daughter | — | 13 | ~1927 |
| Louise Jacobs | Daughter | — | 15 | ~1925 |
| Joseph Jacobs | Head | — | 47 | ~1893 |
| Joseph Jacobs | Son | — | 8 | ~1932 |
| John Jacobs | Son | — | 11 | ~1929 |
| Frances Jacobs | Son | — | 2 | ~1938 |
| Thomas Jacobs | Son | — | 5 | ~1935 |
| Edward Jacobs | Son | — | 10 | ~1930 |
| Helen Jacobs | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Cambria, Pennsylvania
Daughter, age 2
Cambria, Pennsylvania · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Daughter, age 13
Cambria-County, Pennsylvania · implied b. ~1927 — 12 household members
| Surname | Jacobs |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Susquehanna Township |
| 1935 Residence (County) | Cambria |
| Highest Grade | No 7 |
| 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 Mary Jacobs across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jacobs
Daughter · 1940 · age 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Dorothy Jacobs
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Jacobs
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Jacobs
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Jacobs
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Jacobs
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Jacobs
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Jacobs
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Jacobs
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Jacobs
Sibling · 1940 · age 5
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-t0627-03458-00025)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Raynish | 53 | Head | Miner | Austria |
| 2 | Verna B Raynish | 47 | Wife | — | Austria |
| 3 | Helen Raynish | 21 | Daughter | Waitress | Pennsylvania |
| 4 | Frank Raynish | 20 | Son | Miner | Pennsylvania |
| 5 | George Raynish | 17 | Son | — | Pennsylvania |
| 6 | Edward Raynish | 13 | Son | — | Pennsylvania |
| 7 | Irene Raynish | 11 | Daughter | — | Pennsylvania |
| 8 | Robert Raynish | 8 | Son | — | Pennsylvania |
| 9 | Victor Veneskey | 71 | Head | — | Poland |
| 10 | Helen Veneskey | 61 | Wife | — | Poland |
| 11 | Sylvester Veneskey | 27 | Son | Miner | Pennsylvania |
| 12 | Victoria Veneskey | 22 | Daughter | Trimmer | Pennsylvania |
| 13 | Alexander Veneskey | 19 | Son | Tailor'S Helper | Pennsylvania |
| 14 | Edmund Veneskey | 15 | Son | — | Pennsylvania |
| 15 | Joseph Jacobs | 47 | Head | Miner | Czechoslovakia |
| 16 | Helen Jacobs | 34 | Wife | — | Pennsylvania |
| 17 | Louise Jacobs | 15 | Daughter | — | Pennsylvania |
| 18 | Genevieve Jacobs | 14 | Daughter | — | Pennsylvania |
| 19 | Mary Jacobs THIS PERSON | 13 | Daughter | — | Pennsylvania |
| 20 | John Jacobs | 11 | Son | — | Pennsylvania |
| 21 | Edward Jacobs | 10 | Son | — | Pennsylvania |
| 22 | Joseph Jacobs | 8 | Son | — | Pennsylvania |
| 23 | Betty Jacobs | 6 | Daughter | — | Pennsylvania |
| 24 | Thomas Jacobs | 5 | Son | — | Pennsylvania |
| 25 | Dorothy Jacobs | 4 | Daughter | — | Pennsylvania |
| 26 | Frances Jacobs | 2 | Son | — | Pennsylvania |
| 27 | Joseph Sr. Jacobs | 74 | Head | — | Czechoslovakia |
| 28 | Anna B Jacobs | 68 | Wife | — | Czechoslovakia |
| 29 | Andrew Jacobs | 31 | Son | Miner | Pennsylvania |
| 30 | Agnes Katinski | 53 | Head | — | Poland |
| 31 | John Katinski | 27 | Son | Miner | Pennsylvania |
| 32 | Mary Katinski | 25 | Daughter | Seamstress | Pennsylvania |
| 33 | Stanley Katinski | 21 | Son | Miner | Pennsylvania |
| 34 | Frank Katinski | 20 | Son | New Worker | Pennsylvania |
| 35 | Blanche Katinski | 17 | Daughter | — | Pennsylvania |
| 36 | Anna Katinski | 14 | Daughter | — | Pennsylvania |
| 37 | Andrew Katinski | 11 | Son | — | Pennsylvania |
| 38 | Andrew Smiter | 25 | Head | Transportation Loader | Pennsylvania |
| 39 | Helen Smiter | 27 | Wife | — | Pennsylvania |
| 40 | Josephine Smiter | 4 | Daughter | — | Pennsylvania |
Related Census Records
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)