TM
Thelma Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sacramento-County, California
Our Model Tree links this Thelma Martin across the 1920, 1930 and 1940 US Censuses in Sacramento-County, California (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a spouse (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Female
Spouse
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sacramento-County, California |
| Surname | Martin |
| Given Name | Thelma M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Sacramento |
| 1935 Residence (County) | Sacramento |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | American |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thelma | Age | Birth yr |
|---|---|---|---|---|
| Gilbert Martin | Son | — | 1 | ~1939 |
| Herbert Martin | Head | — | 26 | ~1914 |
| Lucille Martin | Daughter | — | ~1940 | |
| Thelma Martin | Spouse | — | 24 | ~1916 |
| James Martin | Son | — | 4 | ~1936 |
| Mary Martin | Daughter | — | 3 | ~1937 |
Census Appearances
1920
Sacramento, California
Daughter, age 4
Sacramento, California · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Sacramento, California
Daughter, age 15
Sacramento, California · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thelma G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sacramento-County, California
Spouse, age 24
Sacramento-County, California · implied b. ~1916 — 6 household members
| Surname | Martin |
| Given Name | Thelma M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Sacramento |
| 1935 Residence (County) | Sacramento |
| Industry | 0 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Thelma Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Martin (~0.92 confidence) and father Harry Martin (~0.92 confidence) and mother Alice Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Martin
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Harry Martin
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Alice Martin
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Martin
Spouse · 1940 · age 24 · b. ~1916 · California
★ 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 — Sacramento-County, California
Open full size
1940 US Federal Census — Sacramento-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00280-00158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William B. Couch | 36 | Head | Miller | Indiana |
| 2 | Edna H. Couch | 31 | Wife | — | No. Dakota |
| 3 | Leila Couch | 11 | daughter | — | Indiana |
| 4 | Jean Couch | 10 | daughter | — | Indiana |
| 5 | Forest Lee Couch | 8 | nephew | — | Oregon |
| 6 | Herbert Martin | 26 | Head | Blacksmith | Iowa |
| 7 | Thelma M. Martin THIS PERSON | 24 | Wife | — | California |
| 8 | James Martin | 4 | son | — | California |
| 9 | Mary Adele Martin | 3 | daughter | — | California |
| 10 | Gilbert W. Martin | 1 | son | — | California |
| 11 | Lucille M. Martin | 0 | daughter | — | California |
| 12 | Frances S. Davis | 65 | Head | Practitioner | Iowa |
| 13 | Jewell E. Davis | 32 | Head | Clerk | California |
| 14 | Elizabeth W. Davis | 29 | Wife | Nurse | Missouri |
| 15 | Justus Reynolds | 50 | Head | Warehouseman | Oregon |
| 16 | Florence Reynolds | 43 | Wife | Processor | Illinois |
| 17 | Mildred Stephens | 16 | daughter | — | California |
| 18 | Henry Schaufel | 12 | stepson | — | California |
| 19 | Avery T. Bold | 51 | Head | Stableman | S. Dakota |
| 20 | Gladys P. Bold | 29 | Wife | — | No. Dakota |
| 21 | Doris E. Bold | 21 | daughter | Typist | No. Dakota |
| 22 | Gregory A. Bold | 19 | son | — | California |
| 23 | Donnis Jean Bold | 13 | daughter | — | California |
| 24 | Cheryl Marie Bold | 9 | daughter | — | California |
| 25 | Lilly E. Levine | 64 | Head | — | Chicago, Ill |
| 26 | Jacob J. Levine | 14 | son | — | California |
| 27 | Pauline Odermatt | 8 | lodger | — | California |
| 28 | Florence Loren | 79 | lodger | — | West Virginia |
| 29 | James Divine | 40 | Head | Contractor | So. Dakota |
| 30 | Clara M. Divine | 39 | Wife | — | So. Dakota |
| 31 | James Jr. Divine | 17 | son | — | California |
| 32 | Prunella Divine | 0 | daughter | — | California |
| 33 | John Coleman | 64 | Head | Janitor | California |
| 34 | Ida H. Coleman | 49 | Wife | — | California |
| 35 | William J. Coleman | 12 | son | Mechanic | California |
| 36 | Forest M. Coleman | 19 | son | — | California |
| 37 | Avonell M. Coleman | 11 | niece | Manufacturer | California |
| 38 | A. R. Donatelli | 54 | Head | Manufacturer | Italy |
| 39 | Mary Donatelli | 56 | wife | — | Italy |
| 40 | Frank Donatelli | 18 | son | — | Italy |
Pedigree Summary
Thelma
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)