RC
Ruth Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orange-County, California
Our Model Tree links this Ruth Carlson across the 1920, 1930 and 1940 US Censuses in Orange-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Female
Spouse
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orange-County, California |
| Surname | Carlson |
| Given Name | Ruth E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Brea city |
| 1935 Residence (County) | Orange |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Brea City |
| Est. Birth Year | ~1899 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Mildred Carlson | Daughter | — | 17 | ~1923 |
| Ruth Carlson | Daughter | — | 20 | ~1920 |
| Emil Carlson | Head | — | 43 | ~1897 |
| Melvin Carlson | Son | — | 17 | ~1923 |
| Ruth Carlson | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Orange, California
Spouse, age 20
Orange, California · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Nebraska |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Orange, California
Spouse, age 30
Orange, California · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Ruth, E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 18 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Orange-County, California
Spouse, age 41
Orange-County, California · implied b. ~1899 — 5 household members
| Surname | Carlson |
| Given Name | Ruth E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Brea city |
| 1935 Residence (County) | Orange |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Ruth Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ruth Carlson
Spouse · 1940 · age 41 · b. ~1899 · California
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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 — Orange-County, California
Open full size
1940 US Federal Census — Orange-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00271-00753)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bernice Gutierrez | 16 | Daughter | — | California |
| 2 | Margaret Gutierrez | 12 | Daughter | — | California |
| 3 | Tony R. Gutierrez | 7 | Son | — | California |
| 4 | Michael Gutierrez | 1 | Son | — | California |
| 5 | Charles C. Mccormick | 31 | Head | Accountant | Maryland |
| 6 | Geneva T. Mccormick | 29 | Wife | — | California |
| 7 | Donald C. Mccormick | 8 | Son | — | California |
| 8 | Emil C. Carlson | 43 | Head | Shop Foreman | California |
| 9 | Ruth E. Carlson THIS PERSON | 41 | Wife | — | Kansas |
| 10 | Ruth H. Carlson | 20 | Daughter | Telephone Operator | California |
| 11 | Mildred C. Carlson | 17 | Daughter | — | California |
| 12 | Melvin C. Carlson | 17 | Son | — | California |
| 13 | Charles W. Hamilton | 51 | Head | Roustabout | Kansas |
| 14 | Ida Hamilton | 48 | Wife | — | California |
| 15 | George F. Hamilton | 19 | Son | — | California |
| 16 | James W. Hamilton | 16 | Son | — | California |
| 17 | Pearl V. Hamilton | 13 | Daughter | — | California |
| 18 | Wiley Welch | 58 | Head | Laborer | Texas |
| 19 | Minnie L. Welch | 52 | Wife | — | Texas |
| 20 | Marion G. Welch | 24 | Son | Laborer | Texas |
| 21 | Clisha P. Welch | 22 | Son | Laborer | Texas |
| 22 | Noel C. Welch | 11 | Son | — | Texas |
| 23 | Hartzel M. Phillips | 49 | Head | Well Puller | Iowa |
| 24 | Gertie D. Phillips | 50 | Wife | — | Iowa |
| 25 | May R. Phillips | 21 | Son | Clerk | Iowa |
| 26 | Jack D. Phillips | 19 | Son | Helper | Iowa |
| 27 | Joyce J. Phillips | 16 | Daughter | — | Iowa |
| 28 | Charles H. Stephens | 52 | Head | Pumper | Iowa |
| 29 | Emma C. Stephens | 53 | Wife | — | Pennsylvania |
| 30 | William C. Stephens | 24 | Son | Mechanic | California |
| 31 | Robert W. Miller | 34 | Son-in-law | Laborer | Arkansas |
| 32 | Opal M. Miller | 25 | Daughter | — | California |
| 33 | Ruby M. Everhart | 27 | Daughter | — | California |
| 34 | Norman W. Stephens | 5 | Grandson | — | California |
| 35 | William M. Stephens | 4 | Grandson | — | California |
| 36 | Ernest R. Barnes | 47 | Head | Painter | Kansas |
| 37 | Marguerite L. Barnes | 41 | Wife | — | California |
| 38 | Frank A. Barnes | 18 | Son | Plumber Helper | California |
| 39 | Rose A. Barnes | 14 | Daughter | — | California |
| 40 | Phyllis C. Barnes | 11 | Daughter | — | Oregon |
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)