MD
Mary Donovan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Snohomish, Washington
Our Model Tree links this Mary Donovan across the 1930 and 1940 US Censuses in Snohomish, Washington (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 13-person household.
Age 19
b. ~1911
Female
Daughter
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Snohomish, Washington |
| Surname | Donovan |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Park Place Precinct |
| Est. Birth Year | ~1911 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Donovan | Daughter | — | 7 | ~1923 |
| Louise Donovan | Daughter | — | 5 | ~1925 |
| Patricia Donovan | Daughter | — | 3 | ~1927 |
| Marjorie Donovan | Daughter | — | 15 | ~1915 |
| Mary Donovan | Daughter | — | 19 | ~1911 |
| Julia Donovan | Daughter | — | 21 | ~1909 |
| Daniel Donovan | Head | — | 55 | ~1875 |
| Endora Donovan | Son | — | 17 | ~1913 |
| Daniel Donovan | Son | — | 12 | ~1918 |
| Gordon Donovan | Son | — | 10 | ~1920 |
| James Donovan | Son | — | 24 | ~1906 |
| Harry Donovan | Son | — | 23 | ~1907 |
| Margaret Donovan | Spouse | — | 48 | ~1882 |
Census Appearances
1930
Snohomish, Washington
Daughter, age 19
Snohomish, Washington · implied b. ~1911 — 13 household members
| Surname | Donovan |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Snohomish-County, Washington
Daughter, age 29
Snohomish-County, Washington · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donavan |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Lake Place |
| 1935 Residence (County) | Snohomish |
| Occupation | Teacher |
| Industry | Junior High School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | C 4 |
| 1935 Residence | Washington |
| 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 Donovan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Donovan
Daughter · 1930 · age 19 · b. ~1911 · Washington
★ You are viewing this record
Sibling
James Donovan
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Donovan
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Donovan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Donovan
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Endora Donovan
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Donovan
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Donovan
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Donovan
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Donovan
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Donovan
Sibling · 1930 · age 3
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 — Snohomish, Washington
Open full size
1930 US Federal Census — Snohomish, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2520unit:0188)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret L Moore | 38 | Head | Secretary | Washington |
| 2 | Edith M Moore | 12 | Daughter | — | Washington |
| 3 | Frances M Moore | 7 | Daughter | — | Washington |
| 4 | Louisa M Bushell | 80 | Mother | — | Canada English |
| 5 | Lefman N Bennett | 72 | Head | — | Wisconsin |
| 6 | Issey Bennett | 68 | Wife | — | Wisconsin |
| 7 | Anton Johnson | 49 | Head | Logger | Sweden |
| 8 | Martha K Johnson | 42 | Wife | — | Sweden |
| 9 | Raymond J Dahl | 16 | Son | — | Washington |
| 10 | Alma K Dahl | 14 | Daughter | — | Washington |
| 11 | Harry L Bennett | 40 | Head | Laborer | South Dakota |
| 12 | Mae L Bennett | 36 | Wife | — | Oregon |
| 13 | Harry L Jr Bennett | 8 | Son | — | Washington |
| 14 | Leon C Bennett | 7 | Son | — | Washington |
| 15 | Charles A Olson | 50 | Head | Laborer | Wisconsin |
| 16 | Mary Olson | 48 | Wife | — | Iowa |
| 17 | Cecelia A Olson | 11 | Daughter | — | Washington |
| 18 | Ruby Lou Olson | 8 | Daughter | — | Washington |
| 19 | John W Spillane | 21 | Step son | Laborer | Iowa |
| 20 | Daniel Donovan | 55 | Head | Section Man | Canada English |
| 21 | Margaret M Donovan | 48 | Wife | — | Canada English |
| 22 | James R Donovan | 24 | Son | Log Scaler | Canada English |
| 23 | Harry J Donovan | 23 | Son | Bookkeeper | Canada English |
| 24 | Julia M Donovan | 21 | Daughter | Office Work | Canada English |
| 25 | Mary C Donovan THIS PERSON | 19 | Daughter | — | Washington |
| 26 | Endora W Donovan | 17 | Son | — | Washington |
| 27 | Marjorie E Donovan | 15 | Daughter | — | Washington |
| 28 | Daniel G Donovan | 12 | Son | — | Washington |
| 29 | Gordon J Donovan | 10 | Son | — | Washington |
| 30 | Catherine C Donovan | 7 | Daughter | — | Washington |
| 31 | Louise A Donovan | 5 | Daughter | — | Washington |
| 32 | Patricia A Donovan | 3 | Daughter | — | Washington |
| 33 | Jane Kingman | 50 | Head | — | Scotland |
| 34 | Harry Kingman | 30 | Son | Logger | California |
| 35 | Philip Hardy | 43 | Head | Farmer | Russia (German) |
| 36 | Helen Hardy | 50 | Wife | — | Germany |
| 37 | Andrew O Hamberg | 59 | Head | Laborer | Sweden |
| 38 | Christina Hamberg | 50 | Wife | — | Sweden |
| 39 | Olaf A Hamberg | 26 | Son | Laborer | Sweden |
| 40 | Peter H Hamberg | 23 | Son | Laborer | Sweden |
| 41 | Vinnie Hamberg | 16 | Son | — | Washington |
| 42 | Peter Andrus | 69 | Head | Farmer | Sweden |
| 43 | Ida Andrus | 48 | Wife | — | Sweden |
| 44 | Harlan Andrus | 24 | Son | Laborer | Washington |
| 45 | Andrew Andrus | 71 | Head | — | Sweden |
| 46 | Carrie Andrus | 71 | Housekeeper | Nursing | Sweden |
| 47 | Malla Johnson | 78 | Head | — | Sweden |
| 48 | John Hamberg | 51 | Head | Tailor | Sweden |
| 49 | Inga C Hamberg | 49 | Wife | — | Sweden |
| 50 | John Hamberg | 25 | Son | Fisherman | Sweden |
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)