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Julia Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sonoma-County, California
Our Model Tree links this Julia Martin across the 1930 and 1940 US Censuses in Sonoma-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sonoma-County, California |
| Surname | Martin |
| Given Name | Julia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Sonoma |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Analy J Twp |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Julia | Age | Birth yr |
|---|---|---|---|---|
| Michael Martin | Son | — | 1 | ~1939 |
| Angelia Martin | Daughter | — | 10 | ~1930 |
| Antonio Martin | Head | — | 43 | ~1897 |
| Julia Martin | Daughter | — | 16 | ~1924 |
| Josephine Martin | Spouse | — | 37 | ~1903 |
| Mary Martin | Daughter | — | 14 | ~1926 |
| Tony Martin | Son | — | 12 | ~1928 |
Census Appearances
1930
Sonoma, California
Daughter, age 6
Sonoma, California · implied b. ~1924 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Julia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Spain |
| Mother's Birthplace | Spain |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sonoma-County, California
Daughter, age 16
Sonoma-County, California · implied b. ~1924 — 7 household members
| Surname | Martin |
| Given Name | Julia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Sonoma |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | California |
| 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 Julia Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Julia Martin
Daughter · 1940 · age 16 · b. ~1924 · California
★ You are viewing this record
Sibling
Tony Martin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Martin
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angelia Martin
Sibling · 1940 · age 10
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 — Sonoma-County, California
Open full size
1940 US Federal Census — Sonoma-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00349-00233)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maude Macdonald | 65 | Head | — | Nebraska |
| 2 | Chas. D. Macdonald | 28 | Son | Trucker | California |
| 3 | Ernest F. D. Sharp | 65 | Head | Farmer | California |
| 4 | Alice M. Sharp | 64 | Wife | — | Nebraska |
| 5 | John E. Pierson | 54 | Head | Bricklayer | Sweden |
| 6 | Laura C. Pierson | 50 | Wife | — | Sweden |
| 7 | John R. Starkey | 61 | Head | Farmer | Ohio |
| 8 | Rose Starkey | 58 | Wife | — | California |
| 9 | Barbara E. Starkey | 21 | Daughter | Stenographer | California |
| 10 | Wm. R. Starkey | 20 | Son | Farmer | California |
| 11 | Joseph A. Hagg | 57 | Head | Farmer | Germany |
| 12 | Rosa Hagg | 52 | Wife | — | Hungary |
| 13 | Gloria V. Hagg | 14 | Daughter | — | California |
| 14 | Wm. L. Kearns | 49 | Head | Farmer | California |
| 15 | Joseph H. Marshall | 37 | Head | Farmer | California |
| 16 | Dorothy C. Marshall | 32 | Wife | — | California |
| 17 | James W. Marshall | 12 | Son | — | California |
| 18 | Eleanor R. Marshall | 10 | Daughter | — | California |
| 19 | Robert L. Marshall | 9 | Son | — | California |
| 20 | Dorothy M. Marshall | 8 | Daughter | — | California |
| 21 | Alice Marshall | 5 | Daughter | — | California |
| 22 | Thomas O. Marshall | 2 | Son | — | California |
| 23 | Antonio Martin | 43 | Head | Farmer | Spain |
| 24 | Josephine Martin | 37 | Wife | — | Spain |
| 25 | Julia Martin THIS PERSON | 16 | Daughter | — | California |
| 26 | Mary A. Martin | 14 | Daughter | — | California |
| 27 | Tony J. Martin | 12 | Son | — | California |
| 28 | Angelia R. Martin | 10 | Daughter | — | California |
| 29 | Michael A. Martin | 1 | Son | — | California |
| 30 | Ira C. Larsen | 62 | Head | — | California |
| 31 | Earl C. Hammell | 45 | Head | Laborer | California |
| 32 | Elsie E. Hammell | 39 | Wife | — | California |
| 33 | Raymond C. Hammell | 16 | Son | — | California |
| 34 | Delight L. Hammell | 12 | Daughter | — | California |
| 35 | Garris M. Hammell | 8 | Son | — | California |
| 36 | Dolores M. Hammell | 6 | Daughter | — | California |
| 37 | Albert Cleveland | 32 | Head | Farmer | Kentucky |
| 38 | George H. Cleveland | 72 | Father | Farmer | Kentucky |
| 39 | Lillie O. Cleveland | 65 | Mother | — | Kentucky |
| 40 | Wayne H. Cleveland | 40 | Brother | Farmer | Kentucky |
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)