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Louis Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Louis Davis across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Male
Head
Born: Colorado
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Davis |
| Given Name | Louis A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Machinist |
| Industry | Bakery Equipment |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 2376 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Machinist |
| Township / Ward | Portland City |
| Est. Birth Year | ~1887 |
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 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Louis Davis | Head | — | 53 | ~1887 |
| Wanda Davis | Daughter | — | 16 | ~1924 |
| Jack Davis | Son | — | 11 | ~1929 |
Census Appearances
1920
Multnomah, Oregon
Head, age 32
Multnomah, Oregon · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Louis A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Illinois |
| Occupation | mechanic |
| Industry | Garage |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Multnomah, Oregon
Head, age 43
Multnomah, Oregon · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Louis A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 19 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Illinois |
| Occupation | Machinist |
| Industry | Auto parts garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Multnomah-County, Oregon
Head, age 53
Multnomah-County, Oregon · implied b. ~1887 — 3 household members
| Surname | Davis |
| Given Name | Louis A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| 1935 Residence (City) | Portland city |
| 1935 Residence (County) | Multnomah |
| Occupation | Machinist |
| Industry | Bakery Equipment |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 2376 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Louis Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Davis
Head · 1940 · age 53 · b. ~1887 · 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-t0627-03389-00023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert M Cottinger | 51 | Head | Milk & Ice Cream Tester | Wisconsin |
| 2 | Coral D Cottinger | 54 | Wife | — | Oregon |
| 3 | Myrl D Cottinger | 18 | Daughter | — | Oregon |
| 4 | Elmer E Zimmerman | 36 | Head | Salesman | California |
| 5 | Gladys E Zimmerman | 32 | Wife | — | Oregon |
| 6 | Wesley E Zimmerman | 11 | Son | — | Oregon |
| 7 | Louis A Davis THIS PERSON | 53 | Head | Machinist | Colorado |
| 8 | Wanda Lou Davis | 16 | Daughter | — | Oregon |
| 9 | Jack L Davis | 11 | Son | — | Oregon |
| 10 | James C Mchenry | 22 | Head | Barber | Oregon |
| 11 | Irene Mchenry | 22 | Wife | Waitress | No Dakota |
| 12 | George J Bertram | 48 | Head | Janitor Paper Hanger | Sweden |
| 13 | Reed Graham | 21 | Head | Machinist | Oregon |
| 14 | Jean A Graham | 18 | Sister | Waitress | Oregon |
| 15 | Ellis B Mctimmonds | 59 | Head | — | Kansas |
| 16 | Milton S Tellers | 33 | Head | Labor | So Dakota |
| 17 | Jason D Tellers | 26 | Brother | Labor | So Dakota |
| 18 | Harold G Williams | 23 | Head | Apprentice Molder | Oregon |
| 19 | Sophrona M Williams | 19 | Wife | Waitress | Oregon |
| 20 | Mary A Parker | 76 | Head | Stock Clerk | Oregon |
| 21 | Maude M Clark | 34 | Head | Sales Clerk | Oregon |
| 22 | Donna Lee Clark | 11 | Daughter | — | Oregon |
| 23 | Clair B Winer | 34 | Lodger | Warehouse Worker | Missouri |
| 24 | Patrick Kehoe | 66 | Head | Janitor | So. Ireland |
| 25 | Beda H Biberg | 68 | Head | — | Sweden |
| 26 | Carl J Biberg | 42 | Son | Farm Labor | Sweden |
| 27 | Walter Fraser | 72 | Head | — | New Zealand |
| 28 | Lillian Fraser | 49 | Wife | — | England |
| 29 | Carl B Friker | 48 | Head | Writer | Oregon |
| 30 | Grace E Friker | 52 | Wife | — | Wisconsin |
| 31 | Emma E Sloan | 66 | Head | — | Oregon |
| 32 | Clyde R Sloan | 38 | Son | Clerk | Oregon |
| 33 | Thomas A Olson | 56 | Head | Air Hammer Operator | Norway |
| 34 | Anna Olson | 58 | Wife | — | Minnesota |
| 35 | William H Nixon | 50 | Head | Car Loader | No Dakota |
| 36 | Gladys I Nixon | 42 | Wife | — | Oregon |
| 37 | William H Jr Nixon | 11 | Son | — | Oregon |
| 38 | Exnia Peters | 60 | Head | — | Oregon |
| 39 | Alpha M Hansen | 36 | Daughter | Sorter | Oregon |
| 40 | Betty J Hansen | 17 | Daughter | — | 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)