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Lydia Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Lydia Smith across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Portland City |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Portland City |
| Est. Birth Year | ~1890 |
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 Lydia | Age | Birth yr |
|---|---|---|---|---|
| Martin Smith | Head | — | 58 | ~1882 |
| John Dorffler | Other | — | 83 | ~1857 |
| Kenneth Smith | Son | — | 17 | ~1923 |
| Lydia Smith | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Clackamas, Oregon
Spouse, age 30
Clackamas, Oregon · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Multnomah, Oregon
Spouse, age 40
Multnomah, Oregon · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Multnomah-County, Oregon
Spouse, age 50
Multnomah-County, Oregon · implied b. ~1890 — 4 household members
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Portland City |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Lydia Smith across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lydia Smith
Spouse · 1940 · age 50 · b. ~1890 · 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-t0627-03394-00029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Pace | 48 | Head | Shipping Clerk | Scotland |
| 2 | Anna Pace | 42 | Wife | — | Denmark |
| 3 | Bruce A. Pace | 13 | Son | — | Oregon |
| 4 | Russell J. Doescher | 29 | Head | Truck Driver | Washington |
| 5 | Mae E. Doescher | 30 | Wife | General Office | Washington |
| 6 | John F. Rees | 55 | Head | Truck Driver | Michigan |
| 7 | Rachel H. Rees | 57 | Wife | — | Illinois |
| 8 | James G. Rhodes | 44 | Head | Stationary Fireman | Nebraska |
| 9 | Verda M. Rhodes | 37 | Wife | — | Nebraska |
| 10 | Marcellia R. Rhodes | 11 | Daughter | — | Nebraska |
| 11 | Marlene L. Rhodes | 4 | Daughter | — | Nebraska |
| 12 | Jerry L. Rhodes | 2 | Son | — | Nebraska |
| 13 | Martin Smith | 58 | Head | Tailor | Denmark |
| 14 | Lydia Smith THIS PERSON | 50 | Wife | — | Iowa |
| 15 | Kenneth L. Smith | 17 | Son | Carrier | Oregon |
| 16 | John G. Dorffler | 83 | Father-in-law | — | Denmark |
| 17 | Herbert L. Veleuener | 31 | Head | Salesman | Illinois |
| 18 | Marie Veleuener | 29 | Wife | Demonstrator | Oregon |
| 19 | Thomas S. Coulson | 43 | Head | Painter (Truck) | England |
| 20 | Caroline Coulson | 28 | Wife | — | Oregon |
| 21 | Helen E. Coulson | 8 | Daughter | — | Oregon |
| 22 | Delores C. Coulson | 2 | Daughter | — | Oregon |
| 23 | Darell R. Coulson | 6 | Step-son | — | Oregon |
| 24 | Margaret M. Schacht | 39 | Head | Supervisor | Denmark |
| 25 | Curtis C. Schleuer | 55 | Head | Owner | Michigan |
| 26 | Gladys M. Schleuer | 42 | Wife | — | Missouri |
| 27 | Norma J. Poland | 19 | Step-daughter | — | Oregon |
| 28 | Henry C. Tatro | 82 | Head | — | Minnesota |
| 29 | Viola D. Tatro | 76 | Wife | — | New York |
| 30 | Myrtie M. Courtright | 60 | Sister-in-law | — | Iowa |
| 31 | Kirk E. Tatro | 47 | Son | Sales Newspapers | Minnesota |
| 32 | Irina M. Tatro | 37 | Daughter | Stenographer | Minnesota |
| 33 | Wayne J. Fiedler | 45 | Head | Working Owner | Idaho |
| 34 | Gertrude R. Fiedler | 41 | Wife | — | North Dakota |
| 35 | Joan L. Fiedler | 15 | Daughter | — | Oregon |
| 36 | William H. Fiedler | 10 | Son | — | Oregon |
| 37 | Margery R. Fiedler | 1 | Daughter | — | Oregon |
| 38 | Edgar G. Fiedler | 53 | Brother | Partner | Idaho |
| 39 | Carl H. Welland | 61 | Lodger | Attendant | Wisconsin |
| 40 | Clarence Fuller | 59 | Head | Carpenter | Minnesota |
Related Census Records
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)