NJ
Nancy Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Mateo-County, California
Our Model Tree links this Nancy Jones across the 1930 and 1940 US Censuses in San-Mateo-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 8-person household.
Age 30
b. ~1910
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Mateo-County, California |
| Surname | Jones |
| Given Name | Nancy J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Burlingame city |
| 1935 Residence (County) | San Mateo |
| Additional Details | |
| Occupation | saleslady |
| Industry | department store |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 960 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Saleslady |
| Township / Ward | Burlingame City |
| Est. Birth Year | ~1910 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Nancy | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Jones | Daughter | — | 28 | ~1912 |
| Lillian Jones | Daughter | — | 27 | ~1913 |
| Kathleen Jones | Daughter | — | 34 | ~1906 |
| Grace Jones | Daughter | — | 25 | ~1915 |
| Nancy Jones | Daughter | — | 30 | ~1910 |
| Frank Jones | Head | — | 65 | ~1875 |
| Robert Jones | Son | — | 32 | ~1908 |
| Nancy Jones | Spouse | — | 65 | ~1875 |
Census Appearances
1930
San Mateo, …
Daughter, age 19
San Mateo, California · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Nancy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Age at First Marriage | Nev |
| Father's Birthplace | England |
| Mother's Birthplace | California |
| Occupation | Typist |
| Industry | Ice Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Mateo-County, California
Daughter, age 30
San-Mateo-County, California · implied b. ~1910 — 8 household members
| Surname | Jones |
| Given Name | Nancy J. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Burlingame city |
| 1935 Residence (County) | San Mateo |
| Occupation | saleslady |
| Industry | department store |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 960 |
| Highest Grade | Hs 4 |
| 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 Nancy Jones across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Nancy Jones
Daughter · 1940 · age 30 · b. ~1910 · California
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Sibling
Beatrice Jones
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Jones
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Jones
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Jones
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Jones
Sibling · 1940 · age 27
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-Mateo-County, California
Open full size
1940 US Federal Census — San-Mateo-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00332-00475)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leo Charles | 46 | — | Machinist | California |
| 2 | Martin O'Hern | 28 | head | Letter Carrier | California |
| 3 | Roberta D. O'Hern | 29 | wife | — | California |
| 4 | Mollie Mae O'Hern | 4 | daughter | — | California |
| 5 | Frank W. Jones | 65 | head | — | England |
| 6 | Nancy N. Jones | 65 | wife | — | California |
| 7 | Kathleen Jones | 34 | daughter | Stenographer | California |
| 8 | Robert H. Jones | 32 | son | — | California |
| 9 | Nancy J. Jones THIS PERSON | 30 | daughter | Saleslady | California |
| 10 | Beatrice M. Jones | 28 | daughter | Bookkeeper | California |
| 11 | Grace V. Jones | 25 | daughter | Saleslady | California |
| 12 | Lillian F. Jones | 27 | daughter | Dental Assistant | California |
| 13 | Edward Wright | 34 | head | Auto Body Painter | Minnesota |
| 14 | Gertrude S. Wright | 34 | wife | — | California |
| 15 | Patsy Wright | 4 | daughter | — | California |
| 16 | Clarence P. Cleary | 56 | head | Machinist | Louisiana |
| 17 | Netta Cleary | 54 | wife | — | Louisiana |
| 18 | Josephine Heins | 68 | head | — | California |
| 19 | Ambrosia Wilkins | 34 | roomer | Assistant Manager | Illinois |
| 20 | Albert Trenta | 24 | head | Gardener | California |
| 21 | Phyllis Trenta | 19 | wife | — | California |
| 22 | Peter Iversen | 62 | head | Electrical Worker | Norway |
| 23 | Edna Iversen | 55 | wife | — | California |
| 24 | Ray Iversen | 20 | daughter | — | California |
| 25 | Whieldin Hance | 46 | head | Sales Promotion Mgr | North Dakota |
| 26 | Dorothy B. Hance | 44 | wife | — | South Dakota |
| 27 | Terrell W. Hance | 19 | son | Grocery Clerk | South Dakota |
| 28 | Harriett Hance | 17 | daughter | — | South Dakota |
| 29 | Ben H. Swartz | 50 | head | Sales Director | Kansas |
| 30 | Lola Von R. Swartz | 31 | wife | Assistant | Texas |
| 31 | Elmer J. Keough | 45 | head | Manager | California |
| 32 | Frank S. Dougan | 53 | head | Salesman | England |
| 33 | Lulu May Dougan | 50 | wife | Manager | Illinois |
| 34 | Harold S. Raphael | 40 | head | Salesman | California |
| 35 | Eva B. Raphael | 34 | wife | — | Michigan |
| 36 | Matthew C. Welshimer | 47 | head | Salesman | Ohio |
| 37 | Emma M. Welshimer | 46 | wife | — | Ohio |
| 38 | Harry E. Mitchell | 44 | head | Bus Terminal Manager | New Jersey |
| 39 | Rena P. Mitchell | 41 | wife | Sales Technician | Oregon |
| 40 | Clarence V. Thompson | 58 | head | Physician | California |
Related Census Records
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)