MS
Mary Sloan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · King, Washington
Our Model Tree links this Mary Sloan across the 1920, 1930 and 1940 US Censuses in King, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 3-person household.
Age 50
b. ~1880
Female
Spouse
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | King, Washington |
| Surname | Sloan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 36 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Connecticut |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Snoqualmie Precinct Pt |
| Est. Birth Year | ~1880 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Henderson Sloan | Head | — | 50 | ~1880 |
| Mary Sloan | Spouse | — | 50 | ~1880 |
| West Sloan | Son | — | 12 | ~1918 |
Census Appearances
1920
King, Washington
Spouse, age 44
King, Washington · implied b. ~1876 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sloan |
| Given Name | May M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
King, Washington
Spouse, age 50
King, Washington · implied b. ~1880 — 3 household members
| Surname | Sloan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 36 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Connecticut |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
King-County, Washington
Spouse, age 61
King-County, Washington · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sloane |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Kennydale Precinct |
| 1935 Residence (County) | King |
| Industry | 0 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Sloan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Sloan
Spouse · 1930 · age 50 · b. ~1880 · Washington
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — King, Washington
Open full size
1930 US Federal Census — King, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2505unit:0872)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William H Cowell | 26 | Head | Teacher | Nebraska |
| 2 | Grace Cowell | 27 | Wife | — | Idaho |
| 3 | William D Cowell | 1 | Son | — | Washington |
| 4 | Ray Butler | 42 | Head | Farmer | Oregon |
| 5 | Edna May Butler | 44 | Wife | — | Kansas |
| 6 | Kenneth Baird | 23 | Son | Engineer | Oklahoma |
| 7 | Everett Baird | 22 | Son | Loader | Oklahoma |
| 8 | Arlie Baird | 20 | Son | Driver | Oklahoma |
| 9 | Georgia May Baird | 18 | Daughter | — | Washington |
| 10 | Carl Boman | 37 | Head | Laborer | Sweden |
| 11 | Elvira Boman | 40 | Wife | — | Sweden |
| 12 | Carl E Boman | 10 | Son | — | Washington |
| 13 | Mary G Boman | 9 | Daughter | — | Washington |
| 14 | Paul H Boman | 4 | Son | — | Washington |
| 15 | John C Boman | 2 | Son | — | Washington |
| 16 | Amanda Quinn | 60 | Boarder | Servant | Maine |
| 17 | Martin Jacobson | 33 | Head | Tallyman | Colorado |
| 18 | Isabelle Jacobson | 26 | Wife | — | Kansas |
| 19 | Ruth Jacobson | 1 | Daughter | — | Washington |
| 20 | James Judd | 38 | Head | Loader | Nebraska |
| 21 | Jessie Judd | 32 | Wife | — | Missouri |
| 22 | June Judd | 11 | Daughter | — | Washington |
| 23 | Marie Judd | 10 | Daughter | — | Washington |
| 24 | Charles Judd | 8 | Son | — | California |
| 25 | Flory Angeline | 39 | Head | Buckers | Rumania |
| 26 | Lucy Angeline | 32 | Wife | — | Michigan |
| 27 | Mary Angeline | 12 | Daughter | — | Washington |
| 28 | Paul Angeline | 9 | Son | — | Washington |
| 29 | Laura Angeline | 5 | Daughter | — | Washington |
| 30 | George R Shully | 57 | Head | Planner | Wisconsin |
| 31 | Hazel Shully | 44 | Wife | — | Oregon |
| 32 | George A Shully | 19 | Son | Whistle Punk | Washington |
| 33 | Walter R Shully | 17 | Son | — | Canada Eng |
| 34 | Hilda D Shully | 15 | Daughter | — | Canada Eng |
| 35 | Lovie Shully | 14 | Daughter | — | Canada Eng |
| 36 | Walter Shully | 13 | Son | — | Canada Eng |
| 37 | Hazel Mae Shully | 10 | Daughter | — | Canada Eng |
| 38 | Donald S Shully | 7 | Son | — | Canada Eng |
| 39 | Jordan Shully | 4 | Son | — | Washington |
| 40 | Josephine Shully | 1 | Daughter | — | Washington |
| 41 | Henderson Sloan | 50 | Head | Farmer | Nebraska |
| 42 | Mary Sloan THIS PERSON | 50 | Wife | — | Iowa |
| 43 | West Sloan | 12 | Son | — | Washington |
| 44 | John Mcpherson | 63 | Head | Blacksmith | Michigan |
| 45 | Edith Mcpherson | 45 | Wife | — | Washington |
| 46 | Mary Mcpherson | 14 | Son | — | Michigan |
| 47 | Edith Mcpherson | 13 | Daughter | — | Michigan |
| 48 | James R Hadden | 77 | Head | Carpenter | Canada Eng |
| 49 | Wilfred Clarke | 23 | Head | Loader | S. Dakota |
| 50 | Bernita Clarke | 18 | Wife | — | S. Dakota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)