TR
Thomas Ryan — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Thomas Ryan across the 1910, 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Mary & Ellen — first a head (b.~1902), then head of a 4-person household.
Age 38
b. ~1902
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Attorney |
| Industry | Private Practice |
| Class of Worker | E |
| Hours Worked | 43 |
| Income (1939) | 2693 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Attorney |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1902 |
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 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Ryan | Daughter | — | 7 | ~1933 |
| Thomas Ryan | Head | — | 38 | ~1902 |
| Thomas Ryan | Son | — | 9 | ~1931 |
| Mary Ryan | Spouse | — | 39 | ~1901 |
Census Appearances
1910
San Francisco, …
Son, age 8
San Francisco, California · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Thomas G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Mexico |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 17
San Francisco, California · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Mexico |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 28
San Francisco, California · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ryan |
| Given Name | Thomas C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 27 |
| Father's Birthplace | California |
| Mother's Birthplace | Mexico |
| Occupation | Attorney |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Head, age 38
San-Francisco-County, California · implied b. ~1902 — 4 household members
| Surname | Ryan |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Attorney |
| Industry | Private Practice |
| Class of Worker | E |
| Hours Worked | 43 |
| Income (1939) | 2693 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| 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 Ryan across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Ryan (~0.83 confidence) and mother Ellen Ryan (~0.83 confidence) and father Thomas Ryan (~0.92 confidence) and mother Eugenia Ryan (~0.92 confidence) and father Thomas Ryan (~0.92 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Mother
Mary Ryan
b. ~1839
Source father>mother
● Household
· direct · ~0.83
Mother
Ellen Ryan
b. ~1860
Source father>mother
● Household
· direct · ~0.83
Father
Thomas Ryan
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Eugenia Ryan
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Thomas Ryan
b. ~1879
Source father
● Household
· direct · ~0.92
This person
Anchor record
Thomas Ryan
Head · 1940 · age 38 · b. ~1902 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00317-00024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Telesphore Poiradeur | 67 | Head | — | Canada-French |
| 42 | Bessie Poiradeur | 69 | Wife | — | California |
| 43 | Rapp Brush | 23 | Head | General Office Clerk | Kansas |
| 44 | Ashley Brush | 20 | Wife | — | Kentucky |
| 45 | Franklin E. Clark | 33 | Head | Printer | Utah |
| 46 | Beatrice Clark | 29 | Wife | — | California |
| 47 | Beatrice Clark | 0 | Daughter | — | California |
| 48 | Vincent Cullinan | 29 | Head | Attorney | California |
| 49 | Elizabeth Cullinan | 28 | Wife | — | California |
| 50 | Louis Kasparque | 70 | Head | — | France |
| 51 | Rosa Kasparque | 55 | Wife | — | France |
| 52 | Bruce Dehrmann | 37 | Head | Vice President | California |
| 53 | Phyllis Dehrmann | 34 | Wife | — | California |
| 54 | Bruce P. Dehrmann | 11 | Son | — | California |
| 55 | Eric Dehrmann | 8 | Son | — | California |
| 56 | Delia Donnelly | 57 | Servant | Servant | Ireland |
| 57 | Eugene Biller | 43 | Head | Labor Negotiator | Ohio |
| 58 | Leonore Biller | 43 | Wife | — | Minnesota |
| 59 | Neal Biller | 20 | Son | — | Washington |
| 60 | David Trummer | 42 | Head | Sales Engineer | South Dakota |
| 61 | Marie Trummer | 43 | Wife | — | Germany |
| 62 | Bruce Trummer | 3 | Son | — | California |
| 63 | Bertel Saulberg | 27 | Head | Draftsman | Colorado |
| 64 | Pearl Saulberg | 27 | Wife | — | Idaho |
| 65 | Archie Timson | 69 | Head | Salesman | Wisconsin |
| 66 | Mabel Timson | 52 | Wife | — | Kentucky |
| 67 | Timson | None | — | — | — |
| 68 | Marjorie De Russy | 54 | Head | — | New York |
| 69 | Marjorie De Russy | 21 | Daughter | Stenographer | Maryland |
| 70 | George W. Baack | 35 | Head | Proprietor | California |
| 71 | Mildred Baack | 30 | Wife | — | Oregon |
| 72 | Gilbert Baack | 5 | Son | — | California |
| 73 | — | None | — | — | — |
| 74 | Carrie Aaren | 60 | Servant | Servant | Norway |
| 75 | George S. Weddis | 59 | Head | — | Kentucky |
| 76 | Cora Weddis | 56 | Wife | — | Georgia |
| 77 | Thomas Ryan THIS PERSON | 38 | Head | Attorney | California |
| 78 | Mary Ryan | 39 | Wife | — | Minnesota |
| 79 | Thomas Jr. Ryan | 9 | Son | — | California |
| 80 | Marjorie Ryan | 7 | Daughter | — | California |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.83
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)