MJ
Margaret James — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this Margaret James across the 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 6-person household.
Age 26
b. ~1914
Female
Daughter
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | James |
| Given Name | Margaret B |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Secretary |
| Industry | Clinic |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Secretary |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1914 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Stephen James | Son | — | 21 | ~1919 |
| Ruth James | Daughter | — | 28 | ~1912 |
| Grace James | Spouse | — | 53 | ~1887 |
| John James | Son | — | 30 | ~1910 |
| Paul James | Head | — | 56 | ~1884 |
| Margaret James | Daughter | — | 26 | ~1914 |
Census Appearances
1930
King, Washington
Daughter, age 16
King, Washington · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | James |
| Given Name | Margaret A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
King-County, Washington
Daughter, age 26
King-County, Washington · implied b. ~1914 — 6 household members
| Surname | James |
| Given Name | Margaret B |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Secretary |
| Industry | Clinic |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 James across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret James
Daughter · 1940 · age 26 · b. ~1914 · Washington
★ You are viewing this record
Sibling
Ruth James
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephen James
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John James
Sibling · 1940 · age 30
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-t0627-04378-00289)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane F Le Cocq | 9 | daughter | — | Washington |
| 42 | Barbara A Le Cocq | 5 | daughter | — | Washington |
| 43 | Elsie Kirkman | 35 | maid | Servant | Washington |
| 44 | Clarence R Flint | 34 | head | Sales Manager | Washington |
| 45 | Frances S Flint | 30 | wife | — | Washington |
| 46 | Diane Flint | 4 | daughter | — | Washington |
| 47 | Richard Flint | 0 | son | — | Washington |
| 48 | Paul B James | 56 | head | Clergyman | Iowa |
| 49 | Grace P James | 53 | wife | — | Massachusetts |
| 50 | John E James | 30 | son | Inst. Driller | Kansas |
| 51 | Ruth B James | 28 | daughter | Assistant | Nevada |
| 52 | Margaret B James THIS PERSON | 26 | daughter | Secretary | Texas |
| 53 | Stephen S James | 21 | son | Pantry Worker | Wyoming |
| 54 | Arthur H Wiggers | 41 | head | Appraiser | Illinois |
| 55 | Marie M Wiggers | 39 | wife | — | Illinois |
| 56 | Gloria M Wiggers | 11 | daughter | — | Washington |
| 57 | Winston J Wiggers | 9 | son | — | Washington |
| 58 | William J Wiggers | 73 | father | — | Iowa |
| 59 | Jesse S Kellogg | 43 | head | External Reagent | Minnesota |
| 60 | Irma E Kellogg | 41 | wife | — | Canada |
| 61 | Bud J Kellogg | 12 | son | — | Washington |
| 62 | Elizabeth J Kellogg | 9 | daughter | — | Washington |
| 63 | Ann S Kellogg | 8 | daughter | — | Washington |
| 64 | Frank Sanderson | 35 | head | Foreman | England |
| 65 | Irene A Sanderson | 40 | wife | — | N. Dakota |
| 66 | Leonard H Jacobson | 58 | head | Physician | Minnesota |
| 67 | Ella A Jacobson | 55 | wife | — | Minnesota |
| 68 | Frank A Fahey | 55 | head | Purchasing Agent | Iowa |
| 69 | Lillian E Fahey | 52 | wife | — | New Jersey |
| 70 | Francis J Fahey | 22 | son | — | Washington |
| 71 | Robert J Fahey | 15 | son | — | Washington |
| 72 | Andrew Borkland | 59 | head | Master Mariner | Finland |
| 73 | Ellen O Borkland | 54 | wife | — | Finland |
| 74 | Helen M Borkland | 21 | daughter | — | Washington |
| 75 | Susanna Nyman | 81 | mother-in-law | — | Finland |
| 76 | Arthur P Nicholson | 37 | head | Mail Carrier | Washington |
| 77 | Berenice Nicholson | 29 | wife | — | Kansas |
| 78 | Norma Nicholson | 9 | daughter | — | Washington |
| 79 | William G Murray | 45 | head | Owner | Michigan |
| 80 | Helen K Murray | 46 | wife | Partner | 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)