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Helen Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Francisco, California
Our Model Tree links this Helen Murphy across the 1910, 1920 and 1930 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a daughter (b.~1907), then head of a 4-person household.
Age 23
b. ~1907
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Francisco, California |
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Stenographer |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1907 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Murphy | Daughter | — | 23 | ~1907 |
| Helena Murphy | Head | — | 50 | ~1880 |
| Edmund Barry | Other | — | 33 | ~1897 |
| Harold Barry | Other | — | 35 | ~1895 |
Census Appearances
1910
San Francisco, …
Daughter, age 3
San Francisco, California · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| 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, …
Daughter, age 13
San Francisco, California · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Daughter, age 23
San Francisco, California · implied b. ~1907 — 4 household members
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Stenographer |
| Industry | Automobile |
| 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 Helen Murphy across 3 US Census years (1910, 1920 and 1930) in San Francisco, California, using XGBoost record linkage. Identified parents: father Thomas Murphy (~0.92 confidence) and father Thomas Murphy (~0.92 confidence) and mother Helena Murphy (~0.92 confidence) and mother Agnes Murphy (~0.92 confidence) and mother Helena Murphy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Murphy
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Thomas Murphy
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Helena Murphy
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Agnes Murphy
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Helena Murphy
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Murphy
Daughter · 1930 · age 23 · b. ~1907 · California
★ You are viewing this record
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:californiacensus00reel204:0763)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew S Smith | 30 | Head | Motorman | California |
| 2 | James H Bloomquist | 35 | Head | Motorman | South Dakota |
| 3 | Minnie F Bloomquist | 45 | Wife | — | New York |
| 4 | Henry C Piquet | 75 | Lodger | Clerk | Washington |
| 5 | Susan J Piquet | 71 | Lodger | — | California |
| 6 | John Sunder | 71 | Lodger | Chauffeur | California |
| 7 | William Mitchell | 75 | Lodger | Laborer | Texas |
| 8 | Harry Colfax | 40 | Head | Cook | Greece |
| 9 | Helen Colfax | 40 | Wife | — | California |
| 10 | Milton Colfax | 9 | Son | — | California |
| 11 | Alex Colfax | 4 | Son | — | California |
| 12 | Helena Murphy | 50 | Head | — | California |
| 13 | Helen Murphy THIS PERSON | 23 | Daughter | Stenographer | California |
| 14 | Harold Barry | 35 | Nephew | Iron Roller | California |
| 15 | Edmund Barry | 33 | Nephew | — | California |
| 16 | Frank King | 38 | Head | Bookkeeper | California |
| 17 | Ella King | 36 | Wife | — | California |
| 18 | Herbert King | 22 | Lodger | Printer | Kansas |
| 19 | Thomas Mack | 58 | Lodger | Clerk | England |
| 20 | Stephen Maclean | 53 | Head | Photographer | Canada |
| 21 | Lillian Maclean | 53 | Wife | — | California |
| 22 | M. J. Barry | 70 | Head | Police | Ireland |
| 23 | Ella Barry | 65 | Wife | — | Ireland |
| 24 | James Larkin | 60 | Head | Brakeman | Ohio |
| 25 | Mary E Larkin | 58 | Wife | — | Ohio |
| 26 | Bert S Larkin | 35 | Son | Booker | California |
| 27 | Thomas J Larkin | 23 | Son | Driver | California |
| 28 | Edward Larkin | 21 | Son | — | California |
| 29 | Lillian De Rose | 31 | Daughter | Bookkeeper | California |
| 30 | Jackie E De Rose | 3 | Grandson | — | California |
| 31 | Louise Engel | 60 | Head | — | California |
| 32 | Ray Engel | 40 | Lodger | Barber | California |
| 33 | Fred Engel | 75 | Lodger | Merchant | Sweden |
| 34 | Joseph Dilling | 50 | Lodger | Baker | California |
| 35 | Theodore Lubeck | 58 | Head | Butcher | France |
| 36 | Marie Lubeck | 58 | Wife | — | France |
| 37 | Alice Lubeck | 28 | Daughter | Stenographer | California |
| 38 | Marie Lapeyrique | 50 | Lodger | — | France |
| 39 | John G Hull | 39 | Head | Salesman | Wisconsin |
| 40 | Loretta Hull | 41 | Wife | — | Wisconsin |
| 41 | Betty Hull | 11 | Daughter | — | Michigan |
| 42 | Robert Hull | 7 | Son | — | California |
| 43 | Esther Hull | 2 | Daughter | — | California |
| 44 | Sarah Hull | 3 | Daughter | — | Wisconsin |
| 45 | Lorraine Hull | 3 | Daughter | — | Wisconsin |
| 46 | Albert J Hara | 48 | Head | Salesman | New York |
| 47 | Russell Hara | 44 | Wife | — | Illinois |
| 48 | Patricia Hara | 12 | Daughter | — | California |
| 49 | Jack Hara | 9 | Son | — | California |
| 50 | Thomas J Hara | 4 | Son | — | California |
Pedigree Summary
Helen
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 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)