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Mary Mccormick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Mary Mccormick across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Portland City |
| Est. Birth Year | ~1875 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Mccormick | Daughter | — | 36 | ~1904 |
| Mary Mccormick | Head | — | 65 | ~1875 |
| Anne Murphy | Other | — | 50 | ~1890 |
| Joseph Mccormick | Son | — | 31 | ~1909 |
Census Appearances
1920
Multnomah, Oregon
Head, age 46
Multnomah, Oregon · implied b. ~1874 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1883 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1889 |
| Birthplace (normalized) | ireland |
1930
Multnomah, Oregon
Other, age 56
Multnomah, Oregon · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Children's Nurse |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Multnomah-County, Oregon
Head, age 65
Multnomah-County, Oregon · implied b. ~1875 — 4 household members
| Surname | McCormick |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Naturalization Status | Naturalized |
| Class of Worker | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Mccormick 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 Mccormick
Head · 1940 · age 65 · b. ~1875 · Oregon
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03390-00837)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theo. O. Odegard | 50 | Head | Mill Worker | Minnesota |
| 2 | Addie R. Odegard | 62 | Wife | — | Missouri |
| 3 | Janet M. Odegard | 9 | Daughter | — | Oregon |
| 4 | Fern R. Morris | 21 | Step-daughter | Seamstress | Oregon |
| 5 | Olor G. Jefferson | 80 | Head | — | Illinois |
| 6 | Louise Philippin | 49 | Housekeeper | — | Oregon |
| 7 | Kikuo Hiromura | 52 | Head | News Reporter | Japan |
| 8 | Seki Hiromura | 40 | Wife | — | Japan |
| 9 | Yugi Hiromura | 18 | Son | — | Oregon |
| 10 | Kozo Hiromura | 16 | Son | — | Oregon |
| 11 | Fasaku Hiromura | 14 | Son | — | Oregon |
| 12 | Mino Hiromura | 12 | Son | — | Oregon |
| 13 | Paul Hiromura | 11 | Son | — | Oregon |
| 14 | Seichiro Sakai | 56 | Head | Cook | Japan |
| 15 | Misao M. Riuko | 55 | Partner | Laborer | Japan |
| 16 | Patrick H. Tynan | 75 | Head | — | Illinois |
| 17 | Robert P. Tynan | 30 | Son | Machinist | Oregon |
| 18 | Albert B. Banta | 79 | Head | — | Indiana |
| 19 | Rose A. Banta | 69 | Wife | — | Nebraska |
| 20 | Harold P. Banta | 35 | Son | House Cleaner | Kansas |
| 21 | Beula P. Banta | 28 | Daughter | — | Oregon |
| 22 | Harrison G. Blake | 43 | Head | Plant. Superint. | California |
| 23 | Corabelle Blake | 42 | Wife | — | Oregon |
| 24 | Mary Mccormick THIS PERSON | 65 | Head | — | Ireland |
| 25 | Anna M. Mccormick | 36 | Daughter | School Teacher | Oregon |
| 26 | Joseph M. Mccormick | 31 | Son | School Teacher | Oregon |
| 27 | Anne Murphy | 50 | Sister | — | Ireland |
| 28 | Myrtle Thomas | 37 | Head | Maid | Michigan |
| 29 | Lambert Pearce | 37 | Lodger | Laborer | Louisiana |
| 30 | James E. Powell | 52 | Head | — | Arkansas |
| 31 | Verena Powell | 37 | Wife | — | Arkansas |
| 32 | Margaret N. Powell | 6 | Daughter | — | Oregon |
| 33 | Charles E. Powell | 4 | Son | — | Oregon |
| 34 | Jennie A. Powell | 3 | daughter | — | Oregon |
| 35 | Ruby A. Macklin | 14 | Stepdaughter | — | California |
| 36 | Max J. Hohman | 66 | Head | — | Germany |
| 37 | Julia Hohman | 74 | Wife | — | Wisconsin |
| 38 | Charles J. Allen | 40 | Head | Recreation Leader | Connecticut |
| 39 | Levina F. Allen | 32 | Wife | — | Washington |
| 40 | Charles E. Allen | 14 | Son | — | Oregon |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)