MD
Margaret Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Margaret Dunn across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Dunn |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Oakland |
| Est. Birth Year | ~1930 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Katherine Dunn | Daughter | — | 13 | ~1927 |
| Betty Dunn | Daughter | — | 6 | ~1934 |
| Marie Dunn | Daughter | — | 15 | ~1925 |
| Margaret Dunn | Daughter | — | 10 | ~1930 |
| Ray Dunn | Head | — | 46 | ~1894 |
| Robert Dunn | Son | — | 18 | ~1922 |
| Ray Dunn | Son | — | 20 | ~1920 |
| Thomas Dunn | Son | — | 22 | ~1918 |
| Blanche Dunn | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Alameda, California
Daughter, age
Alameda, California · implied b. ~1930 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Margaret E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Iowa |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Daughter, age 10
Alameda-County, California · implied b. ~1930 — 9 household members
| Surname | Dunn |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Highest Grade | No 3 |
| 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 Margaret Dunn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Dunn
Daughter · 1940 · age 10 · b. ~1930 · California
★ You are viewing this record
Sibling
Betty Dunn
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Dunn
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Dunn
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Dunn
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dunn
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Dunn
Sibling · 1940 · age 15
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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00437-00247)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Allan Guilbert | 1 | Son | — | California |
| 42 | Earl Euler | 45 | Head | Teamster | California |
| 43 | Julia Euler | 46 | Wife | — | California |
| 44 | Patsy Donahue | 14 | Niece | — | Washington |
| 45 | Spero Gousetis | 46 | Head | Salesman | Greece |
| 46 | Anita Gousetis | 38 | Wife | — | California |
| 47 | Stephen Gousetis | 10 | Son | — | California |
| 48 | Thomas Goodwin | 46 | Head | Yardmaster | California |
| 49 | Ella Goodwin | 46 | Wife | — | Samoa |
| 50 | Paul Goodwin | 17 | Son | — | California |
| 51 | Victor Goodwin | 10 | Son | — | California |
| 52 | Ernest Ainsworth | 25 | Head | Draftsman | California |
| 53 | Lea Ainsworth | 23 | Wife | — | Missouri |
| 54 | Donna Ainsworth | 5 | Daughter | — | Missouri |
| 55 | Permelia Bassett | 85 | Head | — | Utah |
| 56 | Myrtle Mcgilton | 72 | Head | Stenographer | Wisconsin |
| 57 | Eva Massuere | 74 | Head | — | Wisconsin |
| 58 | James Kerby | 34 | Head | Mechanic | Missouri |
| 59 | Marie Kerby | 26 | Wife | — | Colorado |
| 60 | Mary Young | 69 | Mother-in-law | — | Missouri |
| 61 | Stanley Rasmussen | 28 | Head | Machinist | Nevada |
| 62 | Bernice Rasmussen | 24 | Wife | — | Nebraska |
| 63 | Hal B. Brown | 40 | Head | Salesman | Colorado |
| 64 | Edna Brown | 58 | Mother | — | Indiana |
| 65 | Susan Sayers | 71 | Head | — | England |
| 66 | Adelaide Olsen | 56 | Head | — | Portugal |
| 67 | Noah H. Olsen | 30 | Son | Court Clerk | California |
| 68 | Charles W. Olsen | 20 | Son | Traffic Clerk | California |
| 69 | — | None | — | — | — |
| 70 | Dewey B. Jefferis | 41 | Head | Street Maintenance | California |
| 71 | Florence Jefferis | 43 | Wife | — | California |
| 72 | Ray Dunn | 46 | Head | Gardener | Wisconsin |
| 73 | Blanche Dunn | 43 | Wife | Gardener | Iowa |
| 74 | Thomas Dunn | 22 | Son | Truck Driver | Iowa |
| 75 | Ray Jr. Dunn | 20 | Son | Gardener | Washington |
| 76 | Robert Dunn | 18 | Son | Cabinet Maker | Washington |
| 77 | Marie Dunn | 15 | Daughter | — | California |
| 78 | Katherine Dunn | 13 | Daughter | — | California |
| 79 | Margaret Dunn THIS PERSON | 10 | Daughter | — | California |
| 80 | Betty Dunn | 6 | Daughter | — | 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)