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William Lynch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Lynch across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents George & Joseph — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Labor |
| Industry | Theater |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Labor |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1915 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Lynch | Head | — | 46 | ~1894 |
| William Lynch | Son | — | 25 | ~1915 |
| Bernard Lynch | Son | — | 26 | ~1914 |
| Ellen Lynch | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1917 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 4 household members
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Labor |
| Industry | Theater |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| 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 William Lynch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Lynch (~0.92 confidence) and father Joseph Lynch (~0.92 confidence) and mother Sarah Lynch (~0.92 confidence) and father William Lynch (~0.92 confidence) and mother Ellen Lynch (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Lynch
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Joseph Lynch
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Sarah Lynch
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
William Lynch
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Ellen Lynch
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Lynch
Son · 1940 · age 25 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Bernard Lynch
Sibling · 1940 · age 26
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 — 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-t0627-03675-00196)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Della Morgolf | 36 | Lodger-in-law | — | Pennsylvania |
| 2 | Joseph Foley | 41 | Head | Officer | Pennsylvania |
| 3 | Barbara Foley | 36 | Wife | — | Pennsylvania |
| 4 | Joseph Foley | 13 | Son | — | Pennsylvania |
| 5 | Donald Foley | 8 | Son | — | Pennsylvania |
| 6 | Thomas Kennedy | 47 | Head | Laborer Foreman | Pennsylvania |
| 7 | Leslie Kennedy | 46 | Wife | — | Pennsylvania |
| 8 | Ruth Kennedy | 18 | Daughter | — | Pennsylvania |
| 9 | Thomas Kennedy | 16 | Son | — | Pennsylvania |
| 10 | Richard Kennedy | 8 | Son | — | Pennsylvania |
| 11 | Gladys Clarke | 35 | Sister-in-law | — | Pennsylvania |
| 12 | Clyde Powell | 54 | Head | Salesman | Ohio |
| 13 | Jean Powell | 52 | Wife | — | Pennsylvania |
| 14 | Hollis Powell | 29 | Son | Clerk | Pennsylvania |
| 15 | Elma Powell | 13 | Daughter | — | Pennsylvania |
| 16 | Nicholas Rosko | 36 | Head | Butcher | Pennsylvania |
| 17 | Katherine Rosko | 34 | Wife | — | Pennsylvania |
| 18 | William Rosko | 8 | Son | — | Pennsylvania |
| 19 | Mary Hitchman | 65 | Head | — | England |
| 20 | Joseph Fairley | 22 | Head | Store Manager | Pennsylvania |
| 21 | Helen Fairley | 19 | Wife | — | Pennsylvania |
| 22 | Patricia Fairley | 0 | Daughter | — | Pennsylvania |
| 23 | Richard Zeise | 26 | Head | Packer | Pennsylvania |
| 24 | Sara Zeise | 23 | Wife | — | Pennsylvania |
| 25 | Richard Zeise | 1 | Son | — | Pennsylvania |
| 26 | Ends Here | None | BLOCK 55 | — | — |
| 27 | Herbert Peel | 36 | Head | — | Pennsylvania |
| 28 | Alice Peel | 36 | Wife | Electrician | Pennsylvania |
| 29 | Idamae Peel | 9 | Daughter | — | Pennsylvania |
| 30 | Alice Peel | 5 | Daughter | — | Pennsylvania |
| 31 | Geraldine Peel | 3 | Daughter | — | Pennsylvania |
| 32 | Frank Oel | 56 | Head | — | Pennsylvania |
| 33 | Mary Oel | 54 | Wife | — | Pennsylvania |
| 34 | Francis Oel | 23 | Son | Packer | Pennsylvania |
| 35 | Leo Oel | 22 | Son | Packer | Pennsylvania |
| 36 | Mary Oel | 19 | Daughter | Beauty Operator | Pennsylvania |
| 37 | William Lynch | 46 | Head | Painter | Pennsylvania |
| 38 | Ellen Lynch | 46 | Wife | — | Pennsylvania |
| 39 | Bernard Lynch | 26 | Son | Labor | Pennsylvania |
| 40 | William Lynch THIS PERSON | 25 | Son | Labor | Pennsylvania |
Pedigree Summary
William + 1 sibling
Gen 1 · 5 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)