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Mary Macdonald — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Pierce, Washington
Our Model Tree links this Mary Macdonald across the 1930 and 1940 US Censuses in Pierce, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 8-person household.
Age 25
b. ~1905
Female
Daughter
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Pierce, Washington |
| Surname | MacDonald |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Lumber Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Bookkeeper |
| Township / Ward | Tacoma City |
| Est. Birth Year | ~1905 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Macdonald | Son | — | 15 | ~1915 |
| Nell Macdonald | Daughter | — | 21 | ~1909 |
| Bridget Macdonald | Spouse | — | 54 | ~1876 |
| John Gibbons | Other | — | 84 | ~1846 |
| James Macdonald | Head | — | 54 | ~1876 |
| Mary Macdonald | Daughter | — | 25 | ~1905 |
| John Macdonald | Son | — | 17 | ~1913 |
| Joseph Macdonald | Son | — | 11 | ~1919 |
Census Appearances
1930
Pierce, Washington
Daughter, age 25
Pierce, Washington · implied b. ~1905 — 8 household members
| Surname | MacDonald |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Occupation | Bookkeeper |
| Industry | Lumber Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pierce-County, Washington
Head, age 35
Pierce-County, Washington · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Occupation | Treasurer |
| Industry | Steel Fabricating |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1620 |
| Highest Grade | H 4 |
| 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 Mary Macdonald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Macdonald
Daughter · 1930 · age 25 · b. ~1905 · Washington
★ You are viewing this record
Sibling
Thomas Macdonald
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Macdonald
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Macdonald
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nell Macdonald
Sibling · 1930 · age 21
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 — Pierce, Washington
Open full size
1930 US Federal Census — Pierce, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2512unit:0308)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Syver H. Olson | 30 | Head | Proprietor | Minnesota |
| 2 | Marie E. Olson | 26 | Wife | — | Minnesota |
| 3 | Ronald Olson | 3 | Son | — | Minnesota |
| 4 | V. Stickley Gifford | 44 | Head | Quartermaster Clerk | North Carolina |
| 5 | Mary P. Gifford | 39 | Wife | — | North Carolina |
| 6 | Dick P. Gifford | 16 | Son | — | California |
| 7 | James A. Macdonald | 54 | Head | Plumber | Maine |
| 8 | Bridget Macdonald | 54 | Wife | — | Massachusetts |
| 9 | Mary E. Macdonald THIS PERSON | 25 | Daughter | Bookkeeper | Washington |
| 10 | Nell Macdonald | 21 | Daughter | Trained Nurse | Washington |
| 11 | John W. J. Macdonald | 17 | Son | Circulation Clerk | Washington |
| 12 | Thomas F. Macdonald | 15 | Son | — | Washington |
| 13 | Joseph C. Macdonald | 11 | Son | — | Washington |
| 14 | John Gibbons | 84 | Father-in-law | — | West Ireland |
| 15 | Sverin Ringsford | 45 | Head | Salesman Lumber | Norway |
| 16 | Carolina Ringsford | 39 | Wife | — | Norway |
| 17 | Solaug Ringsford | 14 | Daughter | — | Norway |
| 18 | Bjarne Ringsford | 10 | Son | — | Norway |
| 19 | Clarence Ringsford | 2 | Son | — | Norway |
| 20 | Martin Ringsford | 40 | Half-brother | Laborer | Norway |
| 21 | Charles W. Davidson | 46 | Head | Carpenter House | Sweden |
| 22 | Martha B. Davidson | 52 | Wife | — | Minnesota |
| 23 | Norman Hall | 45 | Head | Engineer | Minnesota |
| 24 | Inza Hall | 43 | Wife | — | Minnesota |
| 25 | Marion Hall | 15 | Daughter | — | Washington |
| 26 | Kathryn Hall | 13 | Daughter | — | Washington |
| 27 | Sylvia Hall | 10 | Daughter | — | Washington |
| 28 | Dorothy Hall | 7 | Daughter | — | Washington |
| 29 | Martha Skov | 81 | Mother-in-law | — | Norway |
| 30 | Gustav De Bock | 46 | Head | Baker | France |
| 31 | Cornelia De Bock | 40 | Wife | — | Holland |
| 32 | Henry De Bock | 20 | Son | Butcher | Holland |
| 33 | Johanna De Bock | 17 | Daughter | — | Washington |
| 34 | Gustav De Bock | 14 | Son | — | Washington |
| 35 | Cornelia De Bock | 11 | Daughter | — | Washington |
| 36 | Charlotte De Bock | 5 | Daughter | — | Washington |
| 37 | William S. Dyer | 52 | Head | Pressman | Ohio |
| 38 | Laura M. Dyer | 44 | Wife | — | North Carolina |
| 39 | Delila Dyer | 17 | Daughter | Clerk | Oregon |
| 40 | Merton James | 75 | Head | Electrician | Iowa |
| 41 | Julia James | 56 | Wife | — | Washington |
| 42 | Katherine Marsh | 32 | Roomer | Operator | North Dakota |
| 43 | Jack Dolan | 28 | Roomer | Electric Welder | Unknown |
| 44 | Thomas Bishoff | 45 | Head | Cook | Montana |
| 45 | Rhina Bishoff | 45 | Wife | Housekeeping | Minnesota |
| 46 | Harold Bishoff | 25 | Son | Laborer | Washington |
| 47 | Edwin H. Hollister | 64 | Head | Dentist | Iowa |
| 48 | Blanche Hollister | 55 | Wife | — | Ohio |
| 49 | Alice Bachelor | 32 | Step-daughter | Supervisor | Nebraska |
| 50 | Arthur Bachelor | 13 | Step-grandson | — | Washington |
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)