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Thomas Lynch — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Thomas Lynch across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Timothy & Mary — first a son (b.~1899), then head of a 4-person household.
Age 21
b. ~1899
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Lynch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Student |
| Industry | School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Student |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1899 |
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 1920 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Mary Lynch | Daughter | — | 26 | ~1894 |
| Patrick Lynch | Head | — | 50 | ~1870 |
| Thomas Lynch | Son | — | 21 | ~1899 |
| Edward Lynch | Son | — | 24 | ~1896 |
Census Appearances
1900
Allegheny, Pennsylvania
Son, age 1
Allegheny, Pennsylvania · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Feb |
| Birth Year | 1899 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1901 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 21
Allegheny, Pennsylvania · implied b. ~1899 — 4 household members
| Surname | Lynch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Student |
| Industry | School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Thomas Lynch across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Timothy Lynch (~0.92 confidence) and mother Mary Lynch (~0.92 confidence) and father Michael Lynch (~0.92 confidence) and father Patrick Lynch (~0.92 confidence) and mother Elizabeth Lynch (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Timothy Lynch
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Mary Lynch
b. ~1859
Source mother
● Household
· direct · ~0.92
Father
Michael Lynch
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Patrick Lynch
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Lynch
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Lynch
Son · 1920 · age 21 · b. ~1899 · Pennsylvania
★ You are viewing this record
Sibling
Mary Lynch
Sibling · 1920 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Lynch
Sibling · 1920 · age 24
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
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1523unit:0648)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Regis | 11 | Son | — | Pennsylvania |
| 2 | William | 28 | Head | Ironman | New York |
| 3 | Pearl | 27 | Wife | — | Pennsylvania |
| 4 | Walter Miller | 33 | Head | Carpenter | Pennsylvania |
| 5 | Agatha Miller | 31 | Wife | — | Pennsylvania |
| 6 | George Miller | 7 | Son | — | Pennsylvania |
| 7 | Thelma Miller | 5 | Daughter | — | Pennsylvania |
| 8 | Robert Miller | 3 | Son | — | Pennsylvania |
| 9 | Mildred Miller | 1 | Daughter | — | Pennsylvania |
| 10 | Charles Miller | 38 | Head | — | Pennsylvania |
| 11 | Christina Miller | 37 | Wife | — | Pennsylvania |
| 12 | Charles Miller | 15 | Son | — | Pennsylvania |
| 13 | Fred Miller | 13 | Son | — | Pennsylvania |
| 14 | Elizabeth Miller | 11 | Daughter | — | Pennsylvania |
| 15 | Augusta Miller | 8 | Daughter | — | Pennsylvania |
| 16 | Anna Miller | 6 | Daughter | — | Pennsylvania |
| 17 | Gladys Miller | 3 | Daughter | — | Pennsylvania |
| 18 | Harry Ritter | 30 | Head | Clerk | Pennsylvania |
| 19 | Mary Ritter | 27 | Wife | — | Pennsylvania |
| 20 | Dorothy Ritter | 8 | Daughter | — | Pennsylvania |
| 21 | William Lather | 31 | Head | — | Pennsylvania |
| 22 | Elizabeth Lather | 28 | Wife | — | Pennsylvania |
| 23 | Oliver Roll | 31 | Head | — | Pennsylvania |
| 24 | Anna Roll | 28 | Wife | — | Pennsylvania |
| 25 | Arthur Roll | 8 | Son | — | Pennsylvania |
| 26 | Florence Roll | 6 | Daughter | — | Pennsylvania |
| 27 | Margaret Roll | 4 | Daughter | — | Pennsylvania |
| 28 | Charles Ziegler | 50 | Head | — | Pennsylvania |
| 29 | Margaret Ziegler | 51 | Wife | — | Pennsylvania |
| 30 | Eleanor Ziegler | 21 | Daughter | Clerk | Pennsylvania |
| 31 | Margaret Wise | 23 | Daughter | — | Pennsylvania |
| 32 | Joseph Wise | 24 | Son-in-law | Specialist | Pennsylvania |
| 33 | Albert Schultz | 57 | Head | — | Germany |
| 34 | Elizabeth Schultz | 54 | Wife | — | Pennsylvania |
| 35 | John Schultz | 17 | Son | Laborer | Pennsylvania |
| 36 | Michael Collins | 58 | Head | Laborer | Ireland |
| 37 | Katherine Collins | 51 | Wife | — | Ireland |
| 38 | William Means | 23 | Head | Millwright | Pennsylvania |
| 39 | Emma Means | 19 | Wife | — | Pennsylvania |
| 40 | William Jr. Means | 1 | Son | — | Pennsylvania |
| 41 | Patrick Walsh | 58 | Head | Laborer | Ireland |
| 42 | Mary A. Walsh | 57 | Wife | — | Ireland |
| 43 | Margaret Walsh | 24 | Daughter | Clerk | Pennsylvania |
| 44 | Sarah Walsh | 19 | Daughter | Clerk | Pennsylvania |
| 45 | Gertrude Walsh | 14 | Daughter | — | Pennsylvania |
| 46 | Mary M. Walsh | 11 | Daughter | — | Pennsylvania |
| 47 | Patrick Lynch | 50 | Head | — | Ireland |
| 48 | Mary Lynch | 26 | Daughter | Bookkeeper | Pennsylvania |
| 49 | Edward Lynch | 24 | Son | Clerk | Pennsylvania |
| 50 | Thomas Lynch THIS PERSON | 21 | Son | Student | Pennsylvania |
Pedigree Summary
Thomas + 2 siblings
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 1920 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)