TM
Thomas Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this Thomas Murphy across the 1910, 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Philip & William — first a son (b.~1909), then head of a 4-person household.
Age 21
b. ~1909
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Murphy |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Laborer |
| Industry | Brick Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Laborer |
| Township / Ward | San Francisco |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Philip Murphy | Head | — | 46 | ~1884 |
| Thomas Murphy | Other | — | 48 | ~1882 |
| George Murphy | Son | — | 17 | ~1913 |
| Thomas Murphy | Son | — | 21 | ~1909 |
Census Appearances
1910
San Francisco, …
Son, age
San Francisco, California · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Thomas W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 10
San Francisco, California · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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 21
San Francisco, California · implied b. ~1909 — 4 household members
| Surname | Murphy |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Laborer |
| Industry | Brick Factory |
| Class of Worker | W |
| 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 Murphy across 3 US Census years (1910, 1920 and 1930) in San Francisco, California, using XGBoost record linkage. Identified parents: father Philip Murphy (~0.92 confidence) and father William Murphy (~0.92 confidence) and mother Mary Murphy (~0.92 confidence) and father John Murphy (~0.81 confidence) and mother Jane Murphy (~0.81 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
Philip Murphy
b. ~1884
Source father
● Household
· direct · ~0.92
Father
William Murphy
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Murphy
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
John Murphy
b. ~1837
Source mother>father
● Household
· direct · ~0.81
Mother
Jane Murphy
b. ~1847
Source mother>mother
● Household
· direct · ~0.81
This person
Anchor record
Thomas Murphy
Son · 1930 · age 21 · b. ~1909 · California
★ You are viewing this record
Sibling
George Murphy
Sibling · 1930 · age 17
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
50 people indexed on this census page (ia:1930:californiacensus00reel197:0845)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Herman Lyon | 17 | Son | — | California |
| 52 | Alphonso Petrilli | 77 | Head | Retired | Italy |
| 53 | Elsie Petrilli | 35 | Daughter | Stenographer | California |
| 54 | Mary Paganini | 57 | Boarder | Saleslady | California |
| 55 | Daniel Lyons | 49 | Head | Salesman | New York State |
| 56 | Katherine Lyons | 47 | Wife-H | — | California |
| 57 | Virginia Lyons | 17 | Daughter | — | California |
| 58 | Thomas Connell | 30 | Brother-in-law | Clothing Mason | California |
| 59 | William Sweeney | 52 | Head | Laborer | New York State |
| 60 | Agnes Sweeney | 41 | Wife-H | — | New York State |
| 61 | William Sweeney | 11 | Son | — | California |
| 62 | Edward Sweeney | 9 | Son | — | California |
| 63 | Patrick Sweeney | 7 | Son | — | California |
| 64 | M. Joseph Sweeney | 5 | Son | — | California |
| 65 | Frances M. Sweeney | 6 | Daughter | — | California |
| 66 | Neil R. Mcgrath | 23 | Boarder | Bookkeeper | California |
| 67 | Thomas Sweeney | 24 | Boarder | Laborer | New York State |
| 68 | John Hallahan | 21 | Boarder | Laborer | New York State |
| 69 | James Hallahan | 21 | Boarder | Laborer | New York State |
| 70 | Ralph C. Titoli | 44 | Head | Plumber | Italy |
| 71 | Mary Titoli | 34 | Wife-H | — | Italy |
| 72 | Adrienne Titoli | 4 | Daughter | — | California |
| 73 | Frankie Titoli | 3 | Son | — | California |
| 74 | Frank E. Singer | 33 | Head | Salesman | Massachusetts |
| 75 | Eva Singer | 32 | Wife-H | — | California |
| 76 | Gloria Singer | 2 | Daughter | — | California |
| 77 | Samuel Adams | 55 | Head | — | New York State |
| 78 | Elizabeth Adams | 50 | Wife-H | — | California |
| 79 | Leo Fett | 55 | Head | Carpenter | Germany |
| 80 | Agatha Fett | 52 | Wife-H | — | Germany |
| 81 | Elizabeth Fett | 22 | Daughter | Saleslady | California |
| 82 | Louis Fett | 25 | Son | Salesman | California |
| 83 | Joseph Fett | 20 | Son | Apprentice | California |
| 84 | Margaret Fett | 18 | Daughter | Stenographer | California |
| 85 | Lillian Fett | 11 | Daughter | — | California |
| 86 | Rudolph Fett | 20 | Son | Clerk | Germany |
| 87 | Solomon Segal | 16 | Visitor | — | California |
| 88 | Thomas Fischer | 12 | Boarder | Laborer | Colorado |
| 89 | Annie Fischer | 39 | Boarder | — | Unknown US |
| 90 | Guido Bombardelli | 31 | Head | Laborer | Italy |
| 91 | Mario Bertolotti | 27 | Boarder | Laborer | Italy |
| 92 | Augusto Edie | 47 | Boarder | Laborer | Italy |
| 93 | Luigi Edie | 41 | Brother | — | Italy |
| 94 | Philip J. Murphy | 46 | Head | Captain | California |
| 95 | George J. Murphy | 17 | Son | Apprentice | California |
| 96 | Thomas J. Murphy THIS PERSON | 21 | Son | Laborer | California |
| 97 | Thomas Murphy | 48 | Brother | Sailor | California |
| 98 | Thomas J. Mullin | 57 | Head | Inspector | New York State |
| 99 | Margaret A. Mullin | 57 | Wife-H | — | New York State |
| 100 | Mary A. Mullin | 30 | Daughter | Stenographer | California |
Related Census Records
Pedigree Summary
Thomas + 1 sibling
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.81
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)