MW
Mary Walker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this Mary Walker across the 1910, 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Female
Head
Born: Montana
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Walker |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Montana |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 230 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Housekeeper |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1875 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Walker | Daughter | — | 20 | ~1920 |
| Mary Walker | Head | — | 65 | ~1875 |
| Jack Walker | Son | — | 22 | ~1918 |
Census Appearances
1910
King, Washington
Spouse, age 35
King, Washington · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Montana |
| Years Married | 11 |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | New Germany |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1920
King, Washington
Spouse, age 44
King, Washington · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Mary A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Montana |
| Father's Birthplace | Germany |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
King, Washington
Head, age 56
King, Washington · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Montana |
| Father's Birthplace | Germany |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Home Owned/Rented | H |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
King-County, Washington
Head, age 65
King-County, Washington · implied b. ~1875 — 3 household members
| Surname | Walker |
| Given Name | Mary A. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Montana |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Housekeeper |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 230 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Mary Walker across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Walker
Head · 1940 · age 65 · b. ~1875 · Washington
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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-t0627-04375-00318)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Clausen | 43 | Wife | — | So. Dakota |
| 2 | Jean Clausen | 14 | Daughter | — | Washington |
| 3 | Harry Burlum | 32 | Head | Purchasing Agent | Minnesota |
| 4 | Mary Burlum | 22 | Wife | — | Idaho |
| 5 | Stanley Burlum | 4 | Son | — | Idaho |
| 6 | Janet Burlum | 2 | Daughter | — | Washington |
| 7 | Darrell Burlum | 20 | Brother | Clerk | Idaho |
| 8 | Edward Mcconnelly | 54 | Head | Janitor | South Dakota |
| 9 | Rose Ann Mcconnelly | 55 | Wife | — | South Dakota |
| 10 | Earl Duchrow | 60 | Head | Manager | Iowa |
| 11 | Mae Duchrow | 58 | Wife | — | Iowa |
| 12 | Archibald Gerhart | 51 | Head | Electrician | Washington |
| 13 | Anna Gerhart | 51 | Wife | — | Wisconsin |
| 14 | Dorothy Gerhart | 25 | Daughter | Stenographer | Washington |
| 15 | J. M. Anderson | 48 | Head | — | Washington |
| 16 | Tena J. Anderson | 44 | Wife | House Work | Norway |
| 17 | John Engstrom | 73 | Lodger | — | Sweden |
| 18 | Emmett Donovan | 33 | Head | Warehouseman | Canada |
| 19 | Ruth Donovan | 33 | Wife | — | Ohio |
| 20 | Peggy Donovan | 10 | Daughter | — | Washington |
| 21 | Paddy Donovan | 6 | Son | — | Washington |
| 22 | Clara B. Caldwell | 52 | Head | Office Clerk | Kansas |
| 23 | Anna J. Caldwell | 7 | Daughter | — | Washington |
| 24 | John F. Hanley | 33 | Nephew | Accountant | Maine |
| 25 | Della M. Hanley | 29 | Niece | Stenographer | Montana |
| 26 | Oscar Belin | 53 | Head | Baker | Sweden |
| 27 | Fred Anderson | 57 | Lodger | Baker | Sweden |
| 28 | William Randall | 28 | Head | Salesman | Washington |
| 29 | Olive Randall | 23 | Wife | — | Utah |
| 30 | Nancy Randall | 1 | Daughter | — | Washington |
| 31 | Mary A. Walker THIS PERSON | 65 | Head | Housekeeper | Montana |
| 32 | Jack B. Walker | 22 | Son | Page | Washington |
| 33 | Margaret K. Walker | 20 | Daughter | — | Pennsylvania |
| 34 | Howard E. Walker | 29 | Head | Assembly | Washington |
| 35 | Lurline Walker | 31 | Wife | Mail Order Clerk | Washington |
| 36 | Edward W. Walker | 4 | Son | — | Washington |
| 37 | Donna L. Walker | 1 | Daughter | — | Washington |
| 38 | Bertha Steiner | 25 | Lodger | Waitress | Washington |
| 39 | Mable M. Hay | 62 | Head | Manager | Michigan |
| 40 | Martin Price | 37 | Head | Custodian | Kansas |
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)