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Mary Mcmillan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Multnomah, Oregon
Our Model Tree links this Mary Mcmillan across the 1920, 1930 and 1940 US Censuses in Multnomah, Oregon (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 3-person household.
Age 35
b. ~1885
Female
Spouse
Born: Oregon
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Multnomah, Oregon |
| Surname | McMillan |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Oregon |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Precinct 306 |
| Est. Birth Year | ~1885 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gideon Mcmillan | Head | — | 44 | ~1876 |
| Mary Mcmillan | Spouse | — | 35 | ~1885 |
| Thomas Mcmillan | Son | — | 12 | ~1908 |
Census Appearances
1920
Multnomah, Oregon
Spouse, age 35
Multnomah, Oregon · implied b. ~1885 — 3 household members
| Surname | McMillan |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Oregon |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Multnomah, Oregon
Spouse, age 46
Multnomah, Oregon · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMullin |
| Given Name | Mary W. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Oregon |
| Age at First Marriage | 21 |
| Father's Birthplace | Oregon |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Multnomah-County, Oregon
Spouse, age 56
Multnomah-County, Oregon · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMillin |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Oregon |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Industry | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Mcmillan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcmillan
Spouse · 1920 · age 35 · b. ~1885 · Oregon
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Multnomah, Oregon
Open full size
1920 US Federal Census — Multnomah, Oregon
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1503unit:1105)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Hilda Jane Dickson | 7 | Daughter | — | Oregon |
| 52 | Gideon Mcmillan | 44 | Head | Farmer | New York |
| 53 | Mary Ann Mcmillan THIS PERSON | 35 | Wife | — | Oregon |
| 54 | Thomas D Mcmillan | 12 | Son | — | Oregon |
| 55 | William N Ogden | 34 | Head | Farmer | Indiana |
| 56 | Cora M Ogden | 32 | Wife | — | Illinois |
| 57 | Horatio W Ogden | 12 | Son | — | Oregon |
| 58 | Gould J Ogden | 3 | Son | — | Oregon |
| 59 | Raymond T Ogden | 0 | Son | — | Oregon |
| 60 | Louis Tondergard | 49 | Hired Man | Laborer | Denmark |
| 61 | Edna M Appelwhite | 21 | Servant | Servant | Kansas |
| 62 | Henry Krummel | 49 | Head | Farmer | Germany |
| 63 | Lena Krummel | 43 | Wife | — | Kansas |
| 64 | Quinton H Krummel | 18 | Son | Laborer | Oregon |
| 65 | Irene K Krummel | 15 | Daughter | — | Oregon |
| 66 | Mildred R Krummel | 9 | Daughter | — | Oregon |
| 67 | Lucila J Krummel | 5 | Daughter | — | Oregon |
| 68 | Everett V Roden | 48 | Head | Farmer | Massachusetts |
| 69 | Eva J Roden | 51 | Wife | — | New York |
| 70 | Gertrude F Roden | 16 | Daughter | — | Oregon |
| 71 | Sarah V Campbell | 67 | Boarder | — | Ireland |
| 72 | James V Campbell | 66 | Boarder | — | Ireland |
| 73 | Horatio S Herman | 73 | Head | Farmer | Kentucky |
| 74 | Lizzie M Herman | 52 | Wife | — | Illinois |
| 75 | Walter Roy Lynn | 30 | Head | Tractor Operator | S. Dakota |
| 76 | Jessie O Lynn | 24 | Wife | — | Nebraska |
| 77 | Adolph Ilee | 52 | Head | Salesman | Minnesota |
| 78 | Della P Ilee | 32 | Wife | — | Kansas |
| 79 | Harvey V Ilee | 10 | Son | — | Washington |
| 80 | Clara J Ilee | 9 | Son | — | Washington |
| 81 | Kenneth R Ilee | 6 | Son | — | Washington |
| 82 | Lee R Shelley | 34 | Head | Farmer | Kansas |
| 83 | Myrtle B Shelley | 33 | Wife | — | Nebraska |
| 84 | Adeland Shelley | 6 | Son | — | Oregon |
| 85 | Rhoda M Shelley | 4 | Daughter | — | Oregon |
| 86 | Ralph F Middleton | 8 | Boarder | — | Oregon |
| 87 | Edward Neff | 34 | Head | Mechanic | Oregon |
| 88 | Anna Neff | 31 | Wife | — | Oregon |
| 89 | Morris Hulst | 34 | Head | Farmer | Belgium |
| 90 | Edna Hulst | 34 | Wife | — | Belgium |
| 91 | Walter F Robinson | 35 | Head | Farmer | Maine |
| 92 | Lulu Robinson | 27 | Wife | — | Nebraska |
| 93 | Walter D Robinson | 2 | Son | — | Oregon |
| 94 | S Oishi | 44 | Head | Farmer | Japan |
| 95 | T Oishi | 30 | Wife | — | Japan |
| 96 | M Oishi | 5 | Daughter | — | Oregon |
| 97 | S Oishi | 3 | Son | — | Oregon |
| 98 | William A Swanson | 48 | Head | Farmer | Illinois |
| 99 | Elsa A Swanson | 49 | Wife | — | Sweden |
| 100 | Albin C Swanson | 17 | Son | — | Oregon |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)