JL
Joseph Lawrence — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Joseph Lawrence across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Edward & Mary — first a head (b.~1900), then head of a 4-person household.
Age 40
b. ~1900
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lawrence |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Indiana Twp. |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Miner |
| Township / Ward | Indiana Twp |
| Est. Birth Year | ~1900 |
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 |
|---|---|---|---|---|
| Sally Lawrence | Spouse | — | 33 | ~1907 |
| Joseph Lawrence | Head | — | 40 | ~1900 |
| Helen Lawrence | Daughter | — | 12 | ~1928 |
| Chester Lawrence | Son | — | 14 | ~1926 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 18
Allegheny, Pennsylvania · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 28
Allegheny, Pennsylvania · implied b. ~1902 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Painter |
| Industry | House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 40
Allegheny-County, Pennsylvania · implied b. ~1900 — 4 household members
| Surname | Lawrence |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Indiana Twp. |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 28 |
| Income (1939) | 1200 |
| 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 Joseph Lawrence across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Lawrence (~0.92 confidence) and mother Mary Lawrence (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Lawrence
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mary Lawrence
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Lawrence
Head · 1940 · age 40 · b. ~1900 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03406-00542)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter Rasera | 49 | Head | Miner | Italy |
| 2 | Rose Rasera | 39 | Wife | — | Italy |
| 3 | Pauline Rasera | 14 | daughter | — | Pennsylvania |
| 4 | Margaret Rasera | 9 | daughter | — | Pennsylvania |
| 5 | James Formento | 38 | Head | — | Italy |
| 6 | Mary Formento | 28 | Wife | — | Pennsylvania |
| 7 | Marie Formento | 6 | daughter | — | Pennsylvania |
| 8 | Riley Temple | 33 | Head | Coal Cutter | Pennsylvania |
| 9 | Victoria Temple | 25 | Wife | — | Pennsylvania |
| 10 | James Temple | 8 | son | — | Pennsylvania |
| 11 | Peggy Temple | 6 | daughter | — | Pennsylvania |
| 12 | Betty Temple | 4 | daughter | — | Pennsylvania |
| 13 | Andy Robatti | 45 | Head | Coal Cutter | Italy |
| 14 | Christ Luchi | 56 | Head | — | Austria |
| 15 | Mary Luchi | 46 | Wife | — | Austria |
| 16 | Millie Luchi | 20 | daughter | — | Pennsylvania |
| 17 | Meli Luchi | 18 | son | — | Pennsylvania |
| 18 | Peter Luchi | 15 | son | — | Pennsylvania |
| 19 | Joseph Lawrence THIS PERSON | 40 | Head | Miner | Pennsylvania |
| 20 | Sally Lawrence | 33 | Wife | — | Pennsylvania |
| 21 | Chester Lawrence | 14 | son | — | Pennsylvania |
| 22 | Helen Lawrence | 12 | daughter | — | Pennsylvania |
| 23 | William Steppa | 40 | Head | Labor | Pennsylvania |
| 24 | Rosaline Steppa | 33 | Wife | — | Pennsylvania |
| 25 | William Steppa | 16 | son | — | Pennsylvania |
| 26 | Violette Steppa | 13 | daughter | — | Pennsylvania |
| 27 | Alfred Steppa | 12 | son | — | Pennsylvania |
| 28 | Alice Steppa | 8 | daughter | — | Pennsylvania |
| 29 | Hazel Steppa | 6 | daughter | — | Pennsylvania |
| 30 | Mike Nemick | 39 | Head | Miner | Czechoslovakia |
| 31 | Mary Nemick | 31 | Wife | — | Czechoslovakia |
| 32 | Mike Jr. Nemick | 13 | son | — | Czechoslovakia |
| 33 | Mary Nemick | 6 | daughter | — | Czechoslovakia |
| 34 | Andy Nemick | 5 | son | — | Czechoslovakia |
| 35 | Andy Rusnak | 65 | Head | — | Czechoslovakia |
| 36 | Andy Jr. Rusnak | 26 | son | Miner | Czechoslovakia |
| 37 | Paul Rusnak | 24 | son | Miner | Czechoslovakia |
| 38 | Anna Whites | 55 | Head | — | Czechoslovakia |
| 39 | Helen Whites | 21 | daughter | Maid | Pennsylvania |
| 40 | Pauline Whites | 19 | daughter | Maid | Pennsylvania |
Pedigree Summary
Joseph
Gen 1 · 2 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)