TJ
Thelma Jones — 1930 US Census Record
Model Tree available1930 United States Federal Census · Alameda, California
Our Model Tree links this Thelma Jones across the 1910, 1920 and 1930 US Censuses in Alameda, California (XGBoost, ~Confirmed), with identified parents Owen & Owen — first a daughter (b.~1909), then head of a 4-person household.
Age 21
b. ~1909
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Jones |
| Given Name | Thelma M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Supervisor |
| Industry | Insurance Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Supervisor |
| Township / Ward | Oakland City |
| 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 Thelma | Age | Birth yr |
|---|---|---|---|---|
| Thelma Jones | Daughter | — | 21 | ~1909 |
| Hollyce Jones | Daughter | — | 23 | ~1907 |
| Owen Jones | Head | — | 47 | ~1883 |
| Anna Jones | Spouse | — | 42 | ~1888 |
Census Appearances
1910
Alameda, California
Daughter, age
Alameda, California · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wales-English |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Alameda, California
Daughter, age 11
Alameda, California · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Thelma M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| 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
Alameda, California
Daughter, age 21
Alameda, California · implied b. ~1909 — 4 household members
| Surname | Jones |
| Given Name | Thelma M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | California |
| Occupation | Supervisor |
| Industry | Insurance Office |
| 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 Thelma Jones across 3 US Census years (1910, 1920 and 1930) in Alameda, California, using XGBoost record linkage. Identified parents: father Owen Jones (~0.92 confidence) and father Owen Jones (~0.92 confidence) and mother Josephine Jones (~0.92 confidence) and mother Annie Jones (~0.92 confidence) and mother Anna Jones (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Owen Jones
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Owen Jones
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Josephine Jones
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Annie Jones
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Anna Jones
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Jones
Daughter · 1930 · age 21 · b. ~1909 · California
★ You are viewing this record
Sibling
Hollyce Jones
Sibling · 1930 · age 23
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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula102unit:0865)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James A Hegarty | 30 | Head | Clerk | Scotland |
| 52 | Doris F Hegarty | 21 | Wife | Bookkeeper | California |
| 53 | Whipple | 36 | Head | Salesman | California |
| 54 | Adallen Whipple | 36 | Wife | Credit Reporter | California |
| 55 | Chester F Griesling | 32 | Head | Agent | Ohio |
| 56 | Nellie S Griesling | 29 | Wife | Teacher | California |
| 57 | Florence Tauffer | 45 | Head | — | Louisiana |
| 58 | Owen E Jones | 47 | Head | Operator | Kansas |
| 59 | Anna G Jones | 42 | Wife | — | California |
| 60 | Hollyce R Jones | 23 | Daughter | Teacher | California |
| 61 | Thelma M Jones THIS PERSON | 21 | Daughter | Supervisor | California |
| 62 | Maude M Tone | 51 | Head | Manager | California |
| 63 | C M Dugdell | 40 | Head | Saleslady | Oregon |
| 64 | Shirley J Dugdell | 11 | Daughter | — | California |
| 65 | Rosalyn B Waters | 29 | Head | Clerk | California |
| 66 | Geraldine L Waters | 10 | Daughter | — | California |
| 67 | Clayton P Smith | 24 | Head | Agent | California |
| 68 | Isabel Smith | 25 | Wife | Operator | California |
| 69 | Annie T Gage | 61 | Head | — | Massachusetts |
| 70 | Eunice M Gage | 32 | Daughter | Instructor | California |
| 71 | Ralph S Locke | 25 | Head | Salesman | Oklahoma |
| 72 | Lila J Locke | 25 | Wife | — | Minnesota |
| 73 | Sherman A Locke | 5 | Son | — | California |
| 74 | John Umdenstock | 52 | Head | Retired | Wisconsin |
| 75 | Lillia N Umdenstock | 46 | Wife | — | New York |
| 76 | Fred M Becker | 23 | Nephew | Attendant | California |
| 77 | Henrietta Turre | 50 | Head | — | Italy |
| 78 | Gladys M Turre | 25 | Daughter | Wrapper | California |
| 79 | Evelyn L Turre | 22 | Daughter | Bookkeeper | California |
| 80 | Ross C Wilson | 47 | Head | Printer | Kansas |
| 81 | Theresa Wilson | 46 | Wife | — | Indiana |
| 82 | Patricia Wilson | 20 | Daughter | — | Canada |
| 83 | Eleanor Wilson | 18 | Daughter | — | California |
| 84 | May I Hudson | 40 | Head | General Office | Ohio |
| 85 | Dana S Hudson | 9 | Son | — | Ohio |
| 86 | Emma A Steiner | 67 | Mother-in-law | — | Ohio |
| 87 | Charles Hass | 53 | Head | Salesman | New York |
| 88 | Mildred G Hass | 42 | Wife | — | Nebraska |
| 89 | Mabel S Hass | 20 | Daughter | — | California |
| 90 | Charles T Edwards | 29 | Head | Manager | California |
| 91 | Mildred R Edwards | 25 | Wife | — | Colorado |
| 92 | Charles T Jr Edwards | 5 | Son | — | California |
| 93 | Joyce M Edwards | 3 | Daughter | — | California |
| 94 | Jesse G Francis | 57 | Head | — | Wisconsin |
| 95 | Hazel B Duffy | 30 | Daughter | — | California |
| 96 | Frances H Duffy | 11 | Daughter | — | California |
| 97 | Bernice E Duffy | 9 | Daughter | — | California |
| 98 | James A Duffy | 2 | Son | — | California |
| 99 | Leonard H Ford | 37 | Head | Architect | Arizona |
| 100 | Annabelle Ford | 28 | Wife | Miller | Oregon |
Pedigree Summary
Thelma + 1 sibling
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)