MG
Mary Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Mary Gray across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 4-person household.
Age 61
b. ~1879
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Gray |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Portland City |
| Est. Birth Year | ~1879 |
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 |
|---|---|---|---|---|
| Jean Gray | Daughter | — | 38 | ~1902 |
| William Gray | Head | — | 63 | ~1877 |
| Anne Morback | Other | — | 45 | ~1895 |
| Mary Gray | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Multnomah, Oregon
Spouse, age 41
Multnomah, Oregon · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1919 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Multnomah, Oregon
Other, age 51
Multnomah, Oregon · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary Ann |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1919 |
| Age at First Marriage | 20 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Multnomah-County, Oregon
Spouse, age 61
Multnomah-County, Oregon · implied b. ~1879 — 4 household members
| Surname | Gray |
| Given Name | Mary Ann |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Gray 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 Gray
Spouse · 1940 · age 61 · b. ~1879 · Oregon
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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
36 people indexed on this census page (nara:1940:m-t0627-03390-00439)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lewis J. Hoffman | 54 | Head | Gardener | Oregon |
| 2 | Grace E. Hoffman | 44 | Wife | — | Oregon |
| 3 | Montie King | 47 | Head | Automotive Brake Technician | Nebraska |
| 4 | Margaret King | 44 | Wife | — | England |
| 5 | Norman P. King | 18 | Son | — | Oregon |
| 7 | George E. Hunt | 37 | Head | Tray Waiter | Idaho |
| 8 | Esther Hunt | 29 | Wife | Power Machine Operator | Oregon |
| 9 | Eugene L. Spooner | 39 | Head | Truck Driver | Oregon |
| 10 | Helen M. Spooner | 42 | Wife | — | Indiana |
| 11 | Eugene L. Jr. Spooner | 13 | Son | — | Oregon |
| 12 | David H. Spooner | 1 | Son | — | Oregon |
| 14 | James Philpin | 60 | Head | Janitor | Wales |
| 15 | Edith Philpin | 57 | Wife | — | Wales |
| 16 | James G. Philpin | 22 | Son | Automotive Mechanic | Montana |
| 17 | Donald Phelps | 25 | Son-in-law | Belt Maker | Oregon |
| 18 | Florence G. Phelps | 27 | Daughter | — | Montana |
| 19 | Richard Phelps | 1 | Grandson | — | Oregon |
| 20 | Howard Lund | 29 | Head | Truck Driver | Oregon |
| 21 | Corene Lund | 25 | Wife | — | Iowa |
| 22 | William Gray | 63 | Head | Second Cook And Baker | Scotland |
| 23 | Mary Ann Gray THIS PERSON | 61 | Wife | — | Scotland |
| 24 | Jean R. Gray | 38 | Daughter | Receptionist | Scotland |
| 25 | Anne Morback | 45 | Lodger | — | Idaho |
| 27 | John Maystrom | 59 | Head | House Carpenter | Sweden |
| 28 | Mathilda Maystrom | 55 | Wife | Servant | Norway |
| 29 | Arthur Schwenzer | 30 | Head | Telephone Repairman | Wisconsin |
| 30 | Rose Schwenzer | 30 | Wife | Table Waitress | Oregon |
| 31 | Roland Schwenzer | 13 | Son | — | Oregon |
| 32 | Mabel Peterson | 28 | Servant | Housework | Oregon |
| 33 | Raymond Peterson | 9 | Servant's son | — | Oregon |
| 34 | Clyde Stanbridge | 53 | Head | Meter Repair Man | Michigan |
| 35 | Bessie Stanbridge | 54 | Wife | — | Michigan |
| 36 | Phillip R. Schwarz | 34 | Head | Salesman Owner | New York |
| 37 | Lillian Schwarz | 30 | Wife | — | Canada English |
| 38 | Gerald Schwarz | 2 | Son | — | Oregon |
| 40 | Alfonso Bonn | 32 | Head | Compound Mixer | Iowa |
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)