MJ
Mildred Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Joaquin-County, California
Our Model Tree links this Mildred Jones across the 1920, 1930 and 1940 US Censuses in San-Joaquin-County, California (XGBoost, ~Confirmed), with identified parents Tillia & Ernest — first a daughter (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Joaquin-County, California |
| Surname | Jones |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Lodi City |
| 1935 Residence (County) | San Joaquin |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Notion |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | Lodi 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 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Myrtle Jones | Daughter | — | 48 | ~1892 |
| Mildred Jones | Daughter | — | 34 | ~1906 |
| Ernest Jones | Head | — | 72 | ~1868 |
| Walter Jones | Other | — | 6 | ~1934 |
Census Appearances
1920
San Joaquin, …
Daughter, age 14
San Joaquin, California · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Mildred M |
| Relationship to Head | Daughter |
| Sex | F |
| 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 Joaquin, …
Daughter, age 24
San Joaquin, California · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Mildred U |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Saleslady |
| Industry | Candy store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Joaquin-County, California
Daughter, age 34
San-Joaquin-County, California · implied b. ~1906 — 4 household members
| Surname | Jones |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Lodi City |
| 1935 Residence (County) | San Joaquin |
| Occupation | Clerk |
| Industry | Retail Notion |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same Place |
| 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 Mildred Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Tillia Jones (~0.92 confidence) and father Ernest Jones (~0.92 confidence) and father Samuel Jones (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Tillia Jones
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Ernest Jones
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Samuel Jones
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mildred Jones
Daughter · 1940 · age 34 · b. ~1906 · California
★ You are viewing this record
Sibling
Myrtle Jones
Sibling · 1940 · age 48
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
1940 US Federal Census — San-Joaquin-County, California
Open full size
1940 US Federal Census — San-Joaquin-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00323-00490)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Lind | 24 | Wife | Secretary | California |
| 2 | John Lind | 22 | Son | Machine | California |
| 3 | Vetta L. Lind | 21 | Wife | — | South Dakota |
| 4 | Ernest Jones | 72 | Head | — | California |
| 5 | Myrtle Jones | 48 | Daughter | — | California |
| 6 | Walter Jones | 6 | Grandson | — | California |
| 7 | Mildred Jones THIS PERSON | 34 | Daughter | Clerk | California |
| 8 | William Dahlgren | 76 | Head | — | California |
| 9 | Gus Belivas | 49 | Head | Barber | Greece |
| 10 | Maggie Belivas | 45 | Wife | — | Missouri |
| 11 | John Stiern | 44 | Head | Plumber | Nebraska |
| 12 | Emma Stiern | 41 | Wife | Packer | Missouri |
| 13 | Martha Stiern | 18 | Daughter | — | South Dakota |
| 14 | Arthur Stiern | 15 | Son | — | South Dakota |
| 15 | Albert Stiern | 10 | Son | — | California |
| 16 | Ingvald Hanson | 45 | Head | Shoe Maker | Norway |
| 17 | Carrie Hanson | 37 | Wife | — | Nebraska |
| 18 | Theodore Schmidt | 31 | Head | Laborer | California |
| 19 | Lenore Schmidt | 30 | Wife | — | California |
| 20 | Janelle Schmidt | 4 | Daughter | — | California |
| 21 | Kent Schmidt | 9 | Son | — | California |
| 22 | William Lancaster | 86 | Head | — | Maryland |
| 23 | Emma Lancaster | 76 | Wife | — | Pennsylvania |
| 24 | Eugene Lancaster | 50 | Son | Carpenter | Iowa |
| 25 | Helen Lancaster | 42 | Daughter | — | Iowa |
| 26 | Boyd Lancaster | 14 | Grandson | — | California |
| 27 | Mae Lancaster | 13 | Granddaughter | — | California |
| 28 | James Berns | 43 | Head | Buyer | California |
| 29 | Elizabeth Berns | 38 | Wife | — | Missouri |
| 30 | William Berns | 18 | Son | — | California |
| 31 | Donald Berns | 14 | Son | — | California |
| 32 | James Berns | 12 | Son | — | California |
| 33 | Jack Berns | 11 | Son | — | California |
| 34 | Maurice M. Crosby | 31 | Head | Painter | South Dakota |
| 35 | Orpha P. Crosby | 29 | Wife | — | Minnesota |
| 36 | Maurice R. Crosby | 9 | Son | — | South Dakota |
| 37 | Warren R. Crosby | 5 | Son | — | North Dakota |
| 38 | Stanley May | 25 | Head | Sales Repair | New York |
| 39 | Adelaide May | 23 | Wife | — | South Dakota |
| 40 | Marilyn May | 2 | Daughter | — | California |
Pedigree Summary
Mildred + 1 sibling
Gen 1 · 3 parents
~0.92
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)