WM
William Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kern-County, California
Our Model Tree links this William Martin across the 1920, 1930 and 1940 US Censuses in Kern-County, California (XGBoost, ~Confirmed), with identified parents Charles & Clarence — first a son (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Male
Son
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kern-County, California |
| Surname | Martin |
| Given Name | William W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | 3rd Township |
| 1935 Residence (County) | Kern |
| Additional Details | |
| Occupation | Mechanic's Helper |
| Industry | R.R. Car Shops |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Mechanic'S Helper |
| Township / Ward | 3Rd Township |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Charles Martin | Head | — | 58 | ~1882 |
| Fay Martin | Other | — | 1 | ~1939 |
| Ella Martin | Other | — | 20 | ~1920 |
| William Martin | Son | — | 24 | ~1916 |
| Stella Martin | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Kern, California
Son, age 4
Kern, California · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | William W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Colorado |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Kern, California
Son, age 14
Kern, California · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | William W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | Colorado |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Kern-County, California
Son, age 24
Kern-County, California · implied b. ~1916 — 5 household members
| Surname | Martin |
| Given Name | William W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | 3rd Township |
| 1935 Residence (County) | Kern |
| Occupation | Mechanic's Helper |
| Industry | R.R. Car Shops |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| 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 William Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Martin (~0.92 confidence) and father Clarence Martin (~0.92 confidence) and mother Stella Martin (~0.92 confidence) and mother Ella Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Clarence Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Stella Martin
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Ella Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Martin
Son · 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 — Kern-County, California
Open full size
1940 US Federal Census — Kern-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00213-00088)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Neva F Miller | 21 | Daughter | Stenographer | Minnesota |
| 42 | June V Miller | 12 | Daughter | — | Minnesota |
| 43 | Sidney H Greeley | 58 | Head | — | California |
| 44 | Daniel S Atwood | 43 | Lodger | Supply Clerk | Missouri |
| 45 | Ernest W Meyer | 32 | Lodger | Salesman | California |
| 46 | Paul F Baker | 25 | Lodger | Architect | Utah |
| 48 | Stella Conner | 40 | Head | Housekeeper | Missouri |
| 49 | Andrew J Gilman | 33 | Head | Carpenter | California |
| 50 | Thelma Gilman | 31 | Wife | — | California |
| 51 | K Bruce Gilman | 12 | Son | — | California |
| 52 | Jean Louise Gilman | 9 | Daughter | — | California |
| 53 | Lillian Joan Gilman | 8 | Daughter | — | California |
| 54 | Andrew J Patterson | 47 | Head | Pipe Fitter | Missouri |
| 55 | Jewell L Patterson | 37 | Wife | — | Missouri |
| 56 | Andrew R Patterson | 17 | Son | — | California |
| 57 | Robert F Patterson | 15 | Son | — | California |
| 58 | Earl R Stewart | 30 | Head | Salesman | Missouri |
| 59 | Vera E Stewart | 31 | Wife | — | Alabama |
| 60 | William O Henley | 14 | Son | — | California |
| 61 | Herman Maas | 80 | Head | — | Germany |
| 62 | Anna Maas | 68 | Wife | — | Austria |
| 63 | Chester L Berry | 39 | Head | Mechanic | Oklahoma |
| 64 | Emma P Berry | 34 | Wife | — | Indiana |
| 65 | Barbara Ann Berry | 11 | Daughter | — | California |
| 66 | John Gilmore | 73 | Head | — | Ohio |
| 67 | Edwina Gilmore | 49 | Wife | — | Missouri |
| 68 | Paul F Gilmore | 20 | Son | — | Colorado |
| 69 | Charles L Martin | 58 | Head | Laborer | California |
| 70 | Stella E Martin | 58 | Wife | — | Colorado |
| 71 | William W Martin THIS PERSON | 24 | Son | Mechanic'S Helper | California |
| 72 | Ella M Martin | 20 | Daughter-in-law | — | Missouri |
| 73 | Fay E Martin | 1 | Granddaughter | — | California |
| 74 | Andrew A Boedecker | 40 | Head | Derrick Man | Missouri |
| 75 | Lillian M Boedecker | 30 | Wife | — | Utah |
| 76 | Constance L Colonek | 14 | Daughter | — | Utah |
| 77 | Laney M Wilson | 42 | Head | Carpenter | Florida |
| 78 | John F Webster | 46 | Head | — | Oklahoma |
| 79 | Mack E Amos | 24 | Head | Painter | Arkansas |
| 80 | Lizzie M Amos | 20 | Wife | — | Oklahoma |
Pedigree Summary
William
Gen 1 · 4 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)