WM
William Mcdonald — 1930 US Census Record
Model Tree available1930 United States Federal Census · King, Washington
Our Model Tree links this William Mcdonald across the 1910, 1920 and 1930 US Censuses in King, Washington (XGBoost, ~Confirmed), with identified parents Roy & Ross — first a son (b.~1910), then head of a 4-person household.
Age 20
b. ~1910
Male
Son
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | King, Washington |
| Surname | McDonald |
| Given Name | William B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | Laborer |
| Industry | Seaman |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Laborer |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Roy Mcdonald | Head | — | 43 | ~1887 |
| Inza Mcdonald | Other | — | 41 | ~1889 |
| William Mcdonald | Son | — | 20 | ~1910 |
| Emmett Mcdonald | Son | — | 15 | ~1915 |
Census Appearances
1910
King, Washington
Son, age
King, Washington · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDanal |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
King, Washington
Son, age 10
King, Washington · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 20
King, Washington · implied b. ~1910 — 4 household members
| Surname | McDonald |
| Given Name | William B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Seaman |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 William Mcdonald across 3 US Census years (1910, 1920 and 1930) in King, Washington, using XGBoost record linkage. Identified parents: father Roy Mcdonald (~0.92 confidence) and father Ross Mcdanal (~0.92 confidence) and mother Helga Mcdonald (~0.92 confidence) and mother Inga Mcdanal (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roy Mcdonald
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Ross Mcdanal
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Helga Mcdonald
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Inga Mcdanal
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mcdonald
Son · 1930 · age 20 · b. ~1910 · Washington
★ You are viewing this record
Sibling
Emmett Mcdonald
Sibling · 1930 · age 15
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
1930 US Federal Census — King, Washington
Open full size
1930 US Federal Census — King, Washington
Page Contents
49 people indexed on this census page (ia:1930:15thcensus2495unit:0403)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J. Hakanson | 51 | Head | Engineer | Sweden |
| 2 | John E. Lunn | 44 | Head | Driver | Minnesota |
| 3 | Sadie E. Lunn | 38 | Wife-H | — | Minnesota |
| 4 | Ralph A. Lunn | 10 | Son | — | Washington |
| 5 | John F. Buttelman | 31 | Head | Fireman | New Jersey |
| 6 | Margaret S. Buttelman | 29 | Wife-H | — | No. Ireland |
| 7 | Meta C. Schroeder | 56 | Mother | — | Germany |
| 8 | Alice E. Goddard | 53 | Head | Housework | Ohio |
| 9 | John E. Fogman | 42 | Head | Inspector | Norway |
| 10 | Marie L. Fogman | 38 | Wife-H | — | Norway |
| 11 | John E. Fogman | 16 | Son | — | Washington |
| 12 | Harold F. Fogman | 14 | Son | — | Washington |
| 13 | Marion L. King | 42 | Head | Driver | Idaho |
| 14 | Mary H. King | 28 | Wife-H | — | Montana |
| 15 | John G. King | 9 | Son | — | Washington |
| 16 | William L. King | 8 | Son | — | Washington |
| 17 | Eileen M. King | 5 | Daughter | — | Washington |
| 18 | Elmer Hubbard | 43 | Head | Wireman | Oregon |
| 19 | Alice E. Hubbard | 44 | Wife-H | — | Washington |
| 20 | Marguerite A. Hubbard | 14 | Daughter | — | Washington |
| 21 | Arlene M. Hubbard | 9 | Daughter | — | Washington |
| 22 | Roy F. Mcdonald | 43 | Head | Operator | Minnesota |
| 23 | Inza E. Mcdonald | 41 | Wife-H | — | Wisconsin |
| 24 | William B. Mcdonald THIS PERSON | 20 | Son | Laborer | Washington |
| 25 | Emmett W. Mcdonald | 15 | Son | — | Washington |
| 26 | Richard J. Power | 62 | Head | Steward | New York |
| 27 | Mary J. Power | 57 | Wife-H | — | Canada-Eng |
| 28 | William H. Stack | 37 | Brother-L | Bookkeeper | Washington |
| 29 | James Stack | 9 | Son | — | Washington |
| 30 | George F. Corbin | 29 | Head | Electrician | Michigan |
| 31 | Lillian E. Corbin | 26 | Wife-H | — | Washington |
| 32 | Henrietta Corbin | 69 | Mother | — | Michigan |
| 33 | William O. Nelson | 29 | Head | Plumber | Washington |
| 34 | Maud M. Nelson | 31 | Wife-H | Dept. Clerk | Washington |
| 35 | Norman Lorraine Nelson | 11 | Daughter | — | Washington |
| 36 | Kenneth E. Arthur | 22 | Head | Laborer | Oregon |
| 37 | Minnie M. Arthur | 19 | Wife-H | — | Oregon |
| 38 | Louis Ledwar | 49 | Head | Moulder | Wisconsin |
| 39 | Richard Springer | 48 | Head | Moulder | Germany |
| 40 | Willy R. Fillmore | 41 | Roomer | Laborer | Washington |
| 42 | Elmer C. Crutchfield | 39 | Head | Mechanic | Missouri |
| 43 | Gertrude Crutchfield | 35 | Wife-H | Clerk | Minnesota |
| 44 | Hugh E. Clark | 45 | Head | Electrician | Illinois |
| 45 | Mary E. Clark | 41 | Wife-H | — | Canada-Eng |
| 46 | Ernest J. Engebrets | 49 | Head | Janitor | Norway |
| 47 | Emma M. Engebrets | 42 | Wife-H | — | Sweden |
| 48 | Norman E. Engebrets | 10 | Son | — | Washington |
| 49 | Walter R. Engebrets | 8 | Son | — | Washington |
| 50 | Enna E. Engebrets | 4 | Daughter | — | Washington |
Pedigree Summary
William + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)