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Thomas Lynch — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this Thomas Lynch across the 1910, 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Patrick & Thomas — first a son (b.~1906), then head of a 4-person household.
Age 24
b. ~1906
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Lynch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1906 |
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 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Lynch | Daughter | — | 20 | ~1910 |
| Thomas Lynch | Head | — | 52 | ~1878 |
| Thomas Lynch | Son | — | 24 | ~1906 |
| Elizabeth Lynch | Spouse | — | 52 | ~1878 |
Census Appearances
1910
San Francisco, …
Son, age 5
San Francisco, California · implied b. ~1905 — 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 | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ire English |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 14
San Francisco, California · implied b. ~1906 — 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 | 14 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 24
San Francisco, California · implied b. ~1906 — 4 household members
| Surname | Lynch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 (1910, 1920 and 1930) in San Francisco, California, using XGBoost record linkage. Identified parents: father Patrick Lynch (~0.92 confidence) and father Thomas Lynch (~0.92 confidence) and father Thomas Lynch (~0.92 confidence) and mother Elizabeth Lynch (~0.92 confidence) and mother Nora Lynch (~0.92 confidence) and mother Josephine Lynch (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Lynch
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Thomas Lynch
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Thomas Lynch
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Lynch
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Nora Lynch
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Josephine Lynch
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Lynch
Son · 1930 · age 24 · b. ~1906 · California
★ You are viewing this record
Sibling
Elizabeth Lynch
Sibling · 1930 · age 20
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 — San Francisco, California
Open full size
1930 US Federal Census — San Francisco, California
Page Contents
49 people indexed on this census page (ia:1930:californiacensus00reel204:1082)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alice Hess | 30 | Lodger | Laundry Worker | Kansas |
| 52 | Arthur Moehl | 52 | Head | Pressman | California |
| 53 | Mary A. Moehl | 33 | Wife | — | California |
| 54 | Arthur J. Moehl | 11 | Son | — | California |
| 55 | Edward C. Young | 15 | Step-son | — | California |
| 56 | James J. Young | 11 | Step-daughter | — | California |
| 57 | John E. Hall | 57 | Brother-in-law | Laborer | California |
| 58 | Irene Hall | 30 | Step-daughter | Clerk | California |
| 59 | John E. Hall | 11 | Step-grandson | — | California |
| 60 | Mary A. Hall | 9 | Step-granddaughter | — | California |
| 61 | Thomas Lynch | 52 | Head | Clerk | California |
| 62 | Elizabeth Lynch | 52 | Wife | — | California |
| 63 | Thomas Lynch THIS PERSON | 24 | Son | — | California |
| 64 | Elizabeth Lynch | 20 | Daughter | — | California |
| 65 | Nellie Landis | 50 | Head | — | California |
| 66 | Landis | 20 | Daughter | Clerk | California |
| 67 | Roy Warner | 22 | Boarder | Clerk | California |
| 68 | Pasquale Lepore | 54 | Head | Stevedore | South Carolina |
| 69 | Mary Lepore | 31 | Wife | — | Ireland |
| 70 | Lepore | 2 | Son | — | California |
| 71 | Jeremiah Desmond | 51 | Head | Chauffeur | Irish Free State |
| 72 | Hannah Desmond | 45 | Wife | — | Irish Free State |
| 73 | Desmond | 20 | Son | Salesman | California |
| 74 | Ignatius Desmond | 18 | Son | — | California |
| 75 | Margaret Desmond | 17 | Daughter | — | California |
| 76 | Anna Desmond | 15 | Daughter | — | California |
| 77 | Hannah Desmond | 7 | Daughter | — | California |
| 78 | Edward Waterman | 44 | Head | Mechanic | Russia |
| 79 | Waterman | 16 | Son | Laundry | France |
| 80 | Marie Waterman | 42 | Wife | — | Russia |
| 81 | Arthur Post | 65 | Head | Saleslady | California |
| 82 | Martha Post | 61 | Wife | — | California |
| 83 | George Carter | 31 | Lodger | Fireman | California |
| 84 | Eugene Lazzarini | 43 | Head | Cook | Yugoslavia |
| 85 | Alice Lazzarini | 35 | Wife | Laborer | California |
| 86 | Neal Ashcroft | 35 | Head | Driver | Arkansas |
| 87 | Josephine Ashcroft | 30 | Wife | Sales Clerk | Colorado |
| 88 | Charles Mcclellan | 34 | Head | Draftsman | California |
| 89 | Mcclellan | 28 | Wife | — | California |
| 90 | Donna Mcclellan | 3 | Daughter | — | California |
| 91 | Elizabeth Mcclellan | 50 | Mother | — | California |
| 92 | George Harding | 34 | Head | Melter | Missouri |
| 93 | Mildred Harding | 28 | Wife | Stenographer | Illinois |
| 94 | Stephen Walsh | 53 | Head | Foreman | Philadelphia |
| 95 | Margaret Walsh | 46 | Wife | — | Ireland |
| 96 | Thomas Carey | 44 | Head | Manager | Ireland |
| 97 | Catherine Carey | 37 | Wife | — | Ireland |
| 98 | John Mayo | 42 | Head | Conductor | United States |
| 99 | Irene Mayo | 40 | Wife | — | United States |
Pedigree Summary
Thomas + 1 sibling
Gen 1 · 6 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)