RM
Ruth Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Ruth Mason across the 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Mason |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Parkland |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | G 5 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Parkland |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Mason | Daughter | — | 13 | ~1927 |
| William Mason | Son | — | 17 | ~1923 |
| Ralph Mason | Head | — | 47 | ~1893 |
| James Mason | Son | — | 15 | ~1925 |
| Dorothy Mason | Daughter | — | 16 | ~1924 |
| Doris Mason | Daughter | — | 16 | ~1924 |
| Grace Mason | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Pierce, Washington
Daughter, age 4
Pierce, Washington · implied b. ~1926 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Ruth H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pierce-County, Washington
Daughter, age 13
Pierce-County, Washington · implied b. ~1927 — 7 household members
| Surname | Mason |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Parkland |
| 1935 Residence (County) | Pierce |
| Class of Worker | 0 |
| Highest Grade | G 5 |
| 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 Ruth Mason across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Mason
Daughter · 1940 · age 13 · b. ~1927 · Washington
★ You are viewing this record
Sibling
Dorothy Mason
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Mason
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mason
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mason
Sibling · 1940 · age 17
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 — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04356-00298)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rufus Parker | 26 | Head | Miller'S Helper | Washington |
| 2 | Glenda Parker | 27 | Wife | — | Washington |
| 3 | Ralph Mason | 47 | Head | Mail Carrier | New York |
| 4 | Grace Mason | 47 | Wife | — | New York |
| 5 | William Mason | 17 | Son | Delivery | Minnesota |
| 6 | Dorothy Mason | 16 | Daughter | — | Washington |
| 7 | Doris Mason | 16 | Daughter | — | Washington |
| 8 | James Mason | 15 | Son | — | Washington |
| 9 | Ruth Mason THIS PERSON | 13 | Daughter | — | Washington |
| 10 | Philip R Pepper | 33 | Head | Attendant | Washington |
| 11 | Louise Pepper | 31 | Wife | — | Washington |
| 12 | Barbara A Pepper | 5 | Daughter | — | Washington |
| 13 | Carl Huntington | 46 | Head | Yard Refinery Foreman | Indiana |
| 14 | Marie Huntington | 40 | Wife | — | California |
| 15 | Lenore Huntington | 19 | Daughter | Gym Teacher Helper | California |
| 16 | Stanley Ratcliffe | 26 | Head | Door Sander | Washington |
| 17 | Lois Ratcliffe | 22 | Wife | — | Washington |
| 18 | Edward Wagner | 39 | Head | Post Office Clerk | Poland |
| 19 | Aileen Wagner | 44 | Wife | — | North Dakota |
| 20 | Duane Wagner | 11 | Son | — | Washington |
| 21 | Donald Wagner | 9 | Son | — | Washington |
| 22 | Emma J Scott | 63 | Head | — | Ireland Free State |
| 23 | Mabel Scott | 19 | Daughter | Demonstrator | Iowa |
| 24 | V. W. Green | 46 | Head | Salesman | Arkansas |
| 25 | Marjorie Green | 34 | Wife | Stenographer | Washington |
| 26 | Clarence Ellingson | 29 | Head | Timekeeper | Washington |
| 27 | Dorothy Ellingson | 25 | Wife | — | Washington |
| 28 | Maren Kittelsen | 69 | Head | — | Norway |
| 29 | Anthony Gabrio | 25 | Head | Salesman | Washington |
| 30 | Ethel M Gabrio | 24 | Wife | — | Oregon |
| 31 | Sharon G Gabrio | 2 | Daughter | — | Washington |
| 32 | Jesse J Harger | 56 | Head | Barber | Nebraska |
| 33 | Mabel Harger | 42 | Wife | — | Oregon |
| 34 | Beverley Jean Harger | 12 | Daughter | — | Washington |
| 35 | Howard Henderson | 34 | Head | Truck Driver | Washington |
| 36 | Alice Henderson | 27 | Wife | — | Washington |
| 37 | Dorothy Henderson | 3 | Daughter | — | Washington |
| 38 | Dorothy Henderson | 67 | Head | — | Belgium |
| 39 | William Edward Clark | 19 | Head | Laborer | Washington |
| 40 | June Clark | 16 | Wife | — | Washington |
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)