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Mary Mathews — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lehigh-County, Pennsylvania
Our Model Tree links this Mary Mathews across the 1920, 1930 and 1940 US Censuses in Lehigh-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Female
Spouse
Born: Switzerland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lehigh-County, Pennsylvania |
| Surname | Mathews |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Fullerton village |
| 1935 Residence (County) | Lehigh |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
| Township / Ward | Fullerton Village |
| Est. Birth Year | ~1888 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Donald Mathews | Son | — | 18 | ~1922 |
| Richard Mathews | Son | — | 14 | ~1926 |
| Mary Mathews | Spouse | — | 52 | ~1888 |
| David Mathews | Son | — | 22 | ~1918 |
| David Mathews | Head | — | 54 | ~1886 |
| David Mathews | Other | — | 87 | ~1853 |
Census Appearances
1920
Lehigh, Pennsylvania
Spouse, age 33
Lehigh, Pennsylvania · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Matthews |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Year of Naturalization | 1891 |
| Birthplace (normalized) | switzerland |
Spouse, age 42
Lehigh, Pennsylvania · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Matthews |
| Given Name | Mary R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Age at First Marriage | 1890 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Class of Worker | 20 |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
1940
Lehigh-County, Pennsylvania
Spouse, age 52
Lehigh-County, Pennsylvania · implied b. ~1888 — 6 household members
| Surname | Mathews |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Fullerton village |
| 1935 Residence (County) | Lehigh |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
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 Mathews across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mathews
Spouse · 1940 · age 52 · b. ~1888 · 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 — Lehigh-County, Pennsylvania
Open full size
1940 US Federal Census — Lehigh-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03548-00614)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary G. Lenker | 65 | Sister | — | Pennsylvania |
| 2 | Minnie Guthrie | 67 | Head | — | Pennsylvania |
| 3 | Ruth Riffin | 66 | Head | Sales Lady | Pennsylvania |
| 4 | A. Victor Frederick | 72 | Head | — | Pennsylvania |
| 5 | Tilghman Frederick | 50 | Son | — | Pennsylvania |
| 6 | Thomas | 39 | Son | Truck Driver | Pennsylvania |
| 7 | Stella Diebenderfer | 71 | Housekeeper | House Keeper | Pennsylvania |
| 8 | Albert L. Heid | 65 | Head | Collector | Pennsylvania |
| 9 | Cora Heid | 60 | Wife | — | Pennsylvania |
| 10 | Isabell Heid | 26 | Daughter | School Teacher | Pennsylvania |
| 11 | Albert S. Heid | 23 | Son | Clerk | Pennsylvania |
| 12 | Pauline Dancot | 32 | Daughter | — | Pennsylvania |
| 13 | Janice Held Dancot | 3 | Granddaughter | — | Pennsylvania |
| 14 | John Koch | 29 | Head | Garage Owner | Pennsylvania |
| 15 | Arline Koch | 25 | Wife | House Work | Pennsylvania |
| 16 | Helen Terrence | 32 | Boarder | Weaver | Pennsylvania |
| 17 | James Heller | 64 | Head | Machinist | Pennsylvania |
| 18 | Barbara Heller | 70 | Wife | — | Pennsylvania |
| 19 | Clara Schuler | 45 | Daughter | Sewing Machine | Pennsylvania |
| 20 | Marjorie Schuler | 22 | Granddaughter | School Teacher | Pennsylvania |
| 21 | David Mathews | 54 | Head | Molder | Pennsylvania |
| 22 | Mary Mathews THIS PERSON | 52 | Wife | — | Switzerland |
| 23 | David A. Mathews | 22 | Son | Clerk | Pennsylvania |
| 24 | Donald Mathews | 18 | Son | Checking | Pennsylvania |
| 25 | Richard Mathews | 14 | Son | — | Pennsylvania |
| 26 | David B. Mathews | 87 | Father | — | Pennsylvania |
| 27 | Allen D. Siebenforger | 67 | Head | Contractor | Pennsylvania |
| 28 | Adam Spangler | 25 | Son-in-law | Refrigeration Engineer | Pennsylvania |
| 29 | Madaline Spangler | 21 | Daughter | — | Pennsylvania |
| 30 | Rudolph Host | 35 | Head | Auto Mechanic | Switzerland |
| 31 | Margaret Host | 32 | Wife | — | Switzerland |
| 32 | Rudolph Host | 5 | Son | — | Pennsylvania |
| 33 | Richard Host | 2 | Son | — | Pennsylvania |
| 34 | Winifred Host | 1 | Daughter | — | Pennsylvania |
| 35 | David A. Snyder | 64 | Head | General Utility | Pennsylvania |
| 36 | Caroline Snyder | 65 | Wife | — | Pennsylvania |
| 37 | Harold Snyder | 28 | Son | Roofing | Pennsylvania |
| 38 | Irene Fenstermacher | 42 | Daughter | — | Pennsylvania |
| 39 | Franklin Deifer | 46 | Head | Machinist | Pennsylvania |
| 40 | Mazie Deifer | 43 | Wife | — | 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)