MJ
Mildred James — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sonoma-County, California
Our Model Tree links this Mildred James across the 1930 and 1940 US Censuses in Sonoma-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sonoma-County, California |
| Surname | James |
| Given Name | Mildred L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sonoma |
| 1935 Residence (County) | Sonoma |
| Additional Details | |
| Highest Grade | C 1 |
| 1935 Residence | Calif |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Analy Twp |
| Est. Birth Year | ~1920 |
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 Mildred | Age | Birth yr |
|---|---|---|---|---|
| Mildred James | Daughter | — | 20 | ~1920 |
| James James | Head | — | 48 | ~1892 |
| Robert James | Son | — | 16 | ~1924 |
| Miriam James | Daughter | — | 14 | ~1926 |
| Hazel James | Daughter | — | 23 | ~1917 |
| Helen James | Daughter | — | 22 | ~1918 |
| Helen James | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Sonoma, California
Daughter, age 10
Sonoma, California · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | James |
| Given Name | Mildred R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Washington |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sonoma-County, California
Daughter, age 20
Sonoma-County, California · implied b. ~1920 — 7 household members
| Surname | James |
| Given Name | Mildred L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sonoma |
| 1935 Residence (County) | Sonoma |
| Highest Grade | C 1 |
| 1935 Residence | Calif |
| 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 James across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mildred James
Daughter · 1940 · age 20 · b. ~1920 · California
★ You are viewing this record
Sibling
Helen James
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel James
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert James
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Miriam James
Sibling · 1940 · age 14
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-t0627-00349-00245)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman O. Green | 7 | son | — | Missouri |
| 2 | Gerald D. Green | 5 | son | — | California |
| 3 | Axel Clere | 50 | Head | Deckhand | Sweden |
| 4 | Janette Clere | 42 | wife | — | Norway |
| 5 | Sander O. Clere | 21 | son | Student | California |
| 6 | Betty M. Clere | 13 | daughter | — | California |
| 7 | Oswald Clere | 42 | brother | Laborer | Sweden |
| 8 | Joana E. Hatlen | 39 | Head | Farmer | Norway |
| 9 | Anna Hatlen | 29 | wife | — | Norway |
| 10 | Patricia Hatlen | 14 | daughter | — | California |
| 11 | John A. Hatlen | 10 | son | — | California |
| 12 | Schuyler W. Heald | 21 | Head | Farmer | Iowa |
| 13 | Lulu L. Heald | 64 | wife | — | Nebraska |
| 14 | Frank R. Shubetz | 55 | Head | Farmer | Pennsylvania |
| 15 | Frances Shubetz | 53 | wife | — | Jugo-Slavia |
| 16 | Frank R. Jr. Shubetz | 19 | son | — | California |
| 17 | Alfred W. Manager | 65 | Head | Farmer | England |
| 18 | Delphina Manager | 43 | wife | — | Oregon |
| 19 | John M. Cruz | 54 | Head | Section Hand | Portugal |
| 20 | Mary Cruz | 48 | wife | — | Portugal |
| 21 | Mary Cruz | 9 | daughter | — | California |
| 22 | Manuel A. Roque | 24 | stepson | Farm Laborer | California |
| 23 | John P. Schuldt | 25 | Head | Farmer | Germany |
| 24 | James L. James | 48 | Head | Carpenter | Washington |
| 25 | Helen M. James | 48 | wife | — | Iowa |
| 26 | Hazel James | 23 | daughter | Mother'S Helper | California |
| 27 | Helen E. James | 22 | daughter | — | Nevada |
| 28 | Mildred L. James THIS PERSON | 20 | daughter | — | California |
| 29 | Robert L. James | 16 | son | — | California |
| 30 | Miriam M. James | 14 | daughter | — | California |
| 31 | Frank D. Bean | 36 | Head | Farmer | California |
| 32 | Delphine M. Bean | 33 | wife | — | California |
| 33 | Frank D. Jr. Bean | 8 | son | — | California |
| 34 | Thomas T. Henning | 20 | Head | Farmer | Illinois |
| 35 | Margaret A. Henning | 21 | wife | — | Austria |
| 36 | John S. Lund | 70 | Head | Farmer | Norway |
| 37 | Amanda C. Lund | 67 | wife | — | Sweden |
| 38 | Robert E. Dove | 31 | Head | Farmer | Panama |
| 39 | Felicia R. Dove | 23 | wife | — | California |
| 40 | Leroy E. Dove | 3 | son | — | 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)