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William Lynch — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this William Lynch across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Mary — first a son (b.~1909), then head of a 6-person household.
Age 21
b. ~1909
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1909 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Alice Lynch | Daughter | — | 15 | ~1915 |
| Mary Lynch | Daughter | — | 20 | ~1910 |
| Helen Lynch | Daughter | — | 18 | ~1912 |
| William Lynch | Head | — | 48 | ~1882 |
| William Lynch | Son | — | 21 | ~1909 |
| Mary Lynch | Spouse | — | 45 | ~1885 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age
Philadelphia, Pennsylvania · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 10
Philadelphia, Pennsylvania · implied b. ~1910
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Lynch |
| Given Name | William O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Philadelphia, Pennsylvania
Son, age 21
Philadelphia, Pennsylvania · implied b. ~1909 — 6 household members
| Surname | Lynch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father William Lynch (~0.92 confidence) and mother Mary Lynch (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Lynch
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Lynch
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Lynch
Son · 1930 · age 21 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Mary Lynch
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Lynch
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Lynch
Sibling · 1930 · age 18
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
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2102:0491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | — | 50 | Head | Manager | Pennsylvania |
| 2 | — | 50 | Wife | — | Pennsylvania |
| 3 | — | 25 | Son | Salesman | Pennsylvania |
| 4 | — | 23 | Daughter | Stenographer | Pennsylvania |
| 5 | — | 17 | Daughter | Stenographer | Pennsylvania |
| 6 | — | 16 | Daughter | Stenographer | Pennsylvania |
| 7 | — | 12 | Daughter | — | Pennsylvania |
| 8 | William Bates | 36 | Head | Clerk | Pennsylvania |
| 9 | Mary Bates | 36 | Wife | — | Pennsylvania |
| 10 | William Bates | 14 | Son | — | Pennsylvania |
| 11 | Mary Bates | 11 | Daughter | — | Pennsylvania |
| 12 | Samuel Fleming | 31 | Head | Carpenter | Scotland |
| 13 | Eva Fleming | 29 | Wife | — | Scotland |
| 14 | Samuel Fleming | 8 | Son | — | Scotland |
| 15 | Robert Fleming | 7 | Son | — | Scotland |
| 16 | Eva Fleming | 4 | Daughter | — | Pennsylvania |
| 17 | Margaret Fleming | 2 | Daughter | — | Pennsylvania |
| 18 | Mary Fleming | 1 | Daughter | — | Pennsylvania |
| 19 | William Fleming | 44 | Head | Laborer | Scotland |
| 20 | Mary Fleming | 38 | Wife | — | Scotland |
| 21 | Mary Fleming | 7 | Daughter | — | Scotland |
| 22 | William Fleming | 5 | Son | — | Scotland |
| 23 | Joseph Lynch | 61 | Head | — | Pennsylvania |
| 24 | Mary Lynch | 55 | Wife | — | Pennsylvania |
| 25 | Joseph Lynch | 25 | Son | Stenographer | Pennsylvania |
| 26 | Helen Lynch | 19 | Daughter | — | Pennsylvania |
| 27 | Joseph Lynch | 55 | Head | Collector | Pennsylvania |
| 28 | Mary Lynch | 51 | Wife | — | Pennsylvania |
| 29 | Joseph Lynch | 17 | Son | — | Pennsylvania |
| 30 | Mary Lynch | 15 | Daughter | — | Pennsylvania |
| 31 | Helen Lynch | 13 | Daughter | — | Pennsylvania |
| 32 | Alice Lynch | 9 | Daughter | — | Pennsylvania |
| 33 | Catherine Lynch | 7 | Daughter | — | Pennsylvania |
| 34 | Thomas Lynch | 42 | Head | — | Pennsylvania |
| 35 | Mary Lynch | 41 | Wife | — | Pennsylvania |
| 36 | Thomas Lynch | 17 | Son | — | Pennsylvania |
| 37 | Mary Lynch | 15 | Daughter | — | Pennsylvania |
| 38 | Alice Lynch | 14 | Daughter | — | Pennsylvania |
| 39 | Catherine Lynch | 10 | Daughter | — | Pennsylvania |
| 40 | William Lynch | 48 | Head | Conductor | Pennsylvania |
| 41 | Mary Lynch | 45 | Wife | — | Pennsylvania |
| 42 | William Lynch THIS PERSON | 21 | Son | Clerk | Pennsylvania |
| 43 | Mary Lynch | 20 | Daughter | Stenographer | Pennsylvania |
| 44 | Helen Lynch | 18 | Daughter | — | Pennsylvania |
| 45 | Alice Lynch | 15 | Daughter | — | Pennsylvania |
| 46 | Thomas Lynch | 38 | Head | Clerk | Pennsylvania |
| 47 | Mary Lynch | 34 | Wife | — | Pennsylvania |
| 48 | Thomas Lynch | 14 | Son | — | Pennsylvania |
| 49 | Mary Lynch | 10 | Daughter | — | Pennsylvania |
| 50 | Helen Lynch | 8 | Daughter | — | Pennsylvania |
Pedigree Summary
William + 3 siblings
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 1930 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)