ME
Margaret Ellis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this Margaret Ellis across the 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Ellis |
| Given Name | Margaret M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1927 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Ellis | Daughter | — | 13 | ~1927 |
| Margaret Ellis | Spouse | — | 36 | ~1904 |
| Valentine Ellis | Son | — | 15 | ~1925 |
| Michael Ellis | Son | — | 4 | ~1936 |
| Valentine Ellis | Head | — | 38 | ~1902 |
| Patrick Ellis | Son | — | 16 | ~1924 |
| Evelyn Ellis | Daughter | — | 11 | ~1929 |
| Mary Ellis | Daughter | — | 9 | ~1931 |
Census Appearances
1930
King, Washington
Daughter, age 4
King, Washington · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | North Dakota |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Daughter, age 13
King-County, Washington · implied b. ~1927 — 8 household members
| Surname | Ellis |
| Given Name | Margaret M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Ellis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Ellis
Daughter · 1940 · age 13 · b. ~1927 · Washington
★ You are viewing this record
Sibling
Mary Ellis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Ellis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Valentine Ellis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Ellis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Ellis
Sibling · 1940 · age 4
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04383-00844)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Evelyn M. Hauser | 27 | wife | 0 | Montana |
| 42 | Leroy E. Hauser | 6 | son | — | Washington |
| 43 | Lynn G. Hauser | 1 | son | — | Washington |
| 44 | Howard F. Strong | 30 | head | Laborer | Washington |
| 45 | Viola M. Strong | 25 | wife | 0 | No. Dakota |
| 46 | Dolores J. Strong | 4 | daughter | — | Washington |
| 47 | Robert A. Potts | 55 | head | Window Washer | England |
| 48 | Agnes M. Potts | 45 | wife | 0 | Canada Eng |
| 49 | Evelyn P. Potts | 20 | daughter | 0 | Canada Eng |
| 50 | Robert C. Potts | 18 | son | Skate Boy | Canada Eng |
| 51 | Jack S. Mcneil | 50 | brother-in-law | Janitor | Canada Eng |
| 52 | James J. Grant | 25 | head | 0 | Scotland |
| 53 | Isabella Grant | 68 | wife | 0 | Scotland |
| 54 | Grant Peter Grant | 81 | brother | 0 | Scotland |
| 55 | Angus C. Macmillan | 33 | head | Marine Engineer | Washington |
| 56 | Sara E. Macmillan | 35 | wife | 0 | Pennsylvania |
| 57 | Betty J. Macmillan | 6 | daughter | — | Washington |
| 58 | Mary L. Macmillan | 3 | daughter | — | Washington |
| 59 | William T. Brown | 44 | head | Owner-Mgr. | England |
| 60 | Ethel F. Brown | 44 | wife | Cashier | Washington |
| 61 | William S. Brown | 18 | son | Clerk | Washington |
| 62 | Dorothy L. Brown | 16 | daughter | 0 | Washington |
| 63 | Roy C. Brown | 13 | son | — | Washington |
| 64 | Valentine H. Ellis | 38 | head | Owner-Mgr. | Ireland |
| 65 | Margaret N. Ellis | 36 | wife | 0 | No. Dakota |
| 66 | Patrick A. Ellis | 16 | son | 0 | Washington |
| 67 | Valentine E. Ellis | 15 | son | 0 | Washington |
| 68 | Margaret M. Ellis THIS PERSON | 13 | daughter | — | Washington |
| 69 | Evelyn J. Ellis | 11 | daughter | — | Washington |
| 70 | Mary F. Ellis | 9 | daughter | — | Washington |
| 71 | Michael J. Ellis | 4 | son | — | Washington |
| 72 | George Bisset | 39 | head | Oiler | Ireland |
| 73 | Vivian E. Bisset | 25 | wife | 0 | Washington |
| 74 | Gordon H. Bisset | 3 | son | — | Washington |
| 75 | Gerald R. Bisset | 1 | son | — | Washington |
| 76 | Hannah Smith | 68 | mother-in-law | 0 | Minnesota |
| 77 | Milford A. Ney | 30 | head | Laborer | Nebraska |
| 78 | Margaret P. Ney | 26 | wife | 0 | Idaho |
| 79 | Nadine M. Ney | 9 | daughter | — | Washington |
| 80 | Lloyd E. Wass | 34 | head | Valuemaker | Minnesota |
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)