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Mary Lambert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Berks-County, Pennsylvania
Our Model Tree links this Mary Lambert across the 1920, 1930 and 1940 US Censuses in Berks-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1876), then head of a 5-person household.
Age 64
b. ~1876
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Berks-County, Pennsylvania |
| Surname | Lambert |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Penn Township |
| 1935 Residence (County) | Berks |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Penn Township |
| Est. Birth Year | ~1876 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Verna Lambert | Daughter | — | 42 | ~1898 |
| Harry Lambert | Head | — | 83 | ~1857 |
| Vermont Horvath | Other | — | 11 | ~1929 |
| Paul Lambert | Son | — | 37 | ~1903 |
| Mary Lambert | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Berks, Pennsylvania
Spouse, age 44
Berks, Pennsylvania · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | House Keeper |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Berks, Pennsylvania
Spouse, age 54
Berks, Pennsylvania · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lambert |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 17 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Berks-County, Pennsylvania
Spouse, age 64
Berks-County, Pennsylvania · implied b. ~1876 — 5 household members
| Surname | Lambert |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Penn Township |
| 1935 Residence (County) | Berks |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 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 Lambert 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 Lambert
Spouse · 1940 · age 64 · b. ~1876 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Berks-County, Pennsylvania
Open full size
1940 US Federal Census — Berks-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03434-00624)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vernon J. Davis | 11 | Son | — | Pennsylvania |
| 2 | Karl W. Lewis | 26 | Head | Topper | Pennsylvania |
| 3 | Cassie A. Lewis | 26 | Wife | — | Pennsylvania |
| 4 | Karl W. Lewis | 7 | Son | — | Pennsylvania |
| 5 | Paul S. Lewis | 4 | Son | — | Pennsylvania |
| 6 | Harry S. Kunkel | 70 | Head | Farmer | Pennsylvania |
| 7 | Laura M. Kunkel | 67 | Wife | — | Pennsylvania |
| 8 | Lois J. Warner | 10 | Granddaughter | — | Pennsylvania |
| 9 | Elmer W. Balthaser | 37 | Head | Loom Fixer | Pennsylvania |
| 10 | Emma M. Balthaser | 37 | Wife | Knitter | Pennsylvania |
| 11 | Verna M. Balthaser | 15 | Daughter | — | Pennsylvania |
| 12 | Irene F. Balthaser | 7 | Daughter | — | Pennsylvania |
| 13 | Norman E. Schaffer | 18 | Step Son | Farmer | Pennsylvania |
| 14 | Willie W. Schaffer | 59 | Step Son | Laborer | Pennsylvania |
| 15 | Casper S. Pettinger | 67 | Head | Carpenter | Pennsylvania |
| 16 | Mary A. Pettinger | 57 | Wife | — | Pennsylvania |
| 17 | Daniel E. Pettinger | 22 | Son | Topper | Pennsylvania |
| 18 | Elmer Kaufman | 26 | Lodger | Proprietor | Pennsylvania |
| 19 | Minnie M. Pettinger | 37 | Head | Proprietor | Pennsylvania |
| 20 | John B. Bender | 52 | Head | Proprietor | Pennsylvania |
| 21 | Sallie L. Bender | 51 | Wife | — | Pennsylvania |
| 22 | John S. Bender | 27 | Son | Laborer | Pennsylvania |
| 23 | Richard S. Bender | 19 | Son | Laborer | Pennsylvania |
| 24 | Arlene J. Bender | 16 | Daughter | — | Pennsylvania |
| 25 | Milton A. Kinder | 53 | Head | Laborer | Pennsylvania |
| 26 | Maggie A. Kinder | 52 | Wife | — | Pennsylvania |
| 27 | Jane M. Zellers | 14 | Daughter | — | Pennsylvania |
| 28 | Sebastian J. Zellers | 12 | Grandson | — | Pennsylvania |
| 29 | Harry W. Lambert | 83 | Head | Carpet Weaver | Pennsylvania |
| 30 | Mary E. Lambert THIS PERSON | 64 | Wife | — | Pennsylvania |
| 31 | Verna S. Lambert | 42 | Daughter | Dressmaker | Pennsylvania |
| 32 | Paul W. Lambert | 37 | Son | Laborer | Pennsylvania |
| 33 | Vermont P. Horvath | 11 | Step Son | — | Pennsylvania |
| 34 | Elmer D. Hollenbach | 66 | Head | Black Smith | Pennsylvania |
| 35 | Sallie L. Hollenbach | 60 | Wife | — | Pennsylvania |
| 36 | Franklin E. Fisher | 58 | Head | Farmer | Pennsylvania |
| 37 | Katie A. Fisher | 55 | Wife | — | Pennsylvania |
| 38 | Conrad Houck | 61 | Head | Farmer | Pennsylvania |
| 39 | Adam Houck | 21 | Son | Farmer | Pennsylvania |
| 40 | Conrad Jr. Houck | 19 | Son | Farmer | 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)