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Gertrude Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Oklahoma-County, Oklahoma
Our Model Tree links this Gertrude Martin across the 1920, 1930 and 1940 US Censuses in Oklahoma-County, Oklahoma (XGBoost, ~Confirmed), with identified parents John — first a head (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Female
Head
Born: Oklahoma
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Oklahoma-County, Oklahoma |
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Additional Details | |
| Occupation | Clerk |
| Industry | Health Dept. State |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Clerk |
| Township / Ward | Oklahoma City |
| Est. Birth Year | ~1894 |
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 Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Lois Martin | Daughter | — | 18 | ~1922 |
| Patricia Kelly | Other | — | 12 | ~1928 |
| Charles Martin | Son | — | 11 | ~1929 |
| Elizabeth Martin | Daughter | — | 12 | ~1928 |
| Gertrude Martin | Head | — | 46 | ~1894 |
Census Appearances
1920
Oklahoma, Oklahoma
Daughter, age 24
Oklahoma, Oklahoma · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Gertrude E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Occupation | Stenographer |
| Industry | Bear Cat Products |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Oklahoma, Oklahoma
Spouse, age 35
Oklahoma, Oklahoma · implied b. ~1895 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Age at First Marriage | 22 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Occupation | Comm. Traveler |
| Industry | News Paper Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Oklahoma-County, Oklahoma
Head, age 46
Oklahoma-County, Oklahoma · implied b. ~1894 — 5 household members
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Occupation | Clerk |
| Industry | Health Dept. State |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Gertrude Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Dillon (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Dillon
b. ~1865
Source father
● Household
· direct · ~0.92
This person
Anchor record
Gertrude Martin
Head · 1940 · age 46 · b. ~1894 · Oklahoma
★ 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 — Oklahoma-County, Oklahoma
Open full size
1940 US Federal Census — Oklahoma-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03344-00161)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George E. Calvert | 55 | Head | Owner | Missouri |
| 42 | Maude R. Calvert | 47 | Wife | — | Kansas |
| 43 | Mary Ann Calvert | 14 | Daughter | — | Oklahoma |
| 44 | Betty Lou Calvert | 12 | Daughter | — | Oklahoma |
| 45 | Maude R. Calvert | 8 | Daughter | — | Oklahoma |
| 46 | Elvin G. Mcclain | 33 | Head | Owner-Manager | Oklahoma |
| 47 | Estella M. Mcclain | 33 | Wife | — | Oklahoma |
| 48 | Mack D. Mcclain | 2 | Son | — | Oklahoma |
| 49 | Nancy C. Mcclain | 0 | Daughter | — | Oklahoma |
| 50 | Bert C. Nickelson | 41 | Head | Mechanical Supervisor | New York |
| 51 | Frances H. Nickelson | 50 | Wife | — | Texas |
| 52 | Raymond R. Curtis | 42 | Head | Clerical Worker | Montana |
| 53 | Eleanor N. Curtis | 40 | Wife | School Teacher | Iowa |
| 54 | Meta O. Acree | 22 | House-Help | Housekeeper | Oklahoma |
| 55 | Jack F. Acree | 14 | Son | — | Iowa |
| 56 | Mollie Crain | 58 | Mother-in-law | — | Missouri |
| 57 | Ketrah E. Foulks | 36 | Head | Social Worker | Oklahoma |
| 58 | Betty H. Foulks | 12 | Son | — | Oklahoma |
| 59 | Velda Meuschke | 26 | Lodger | Nurse | Oklahoma |
| 60 | Helen E. Carr | 37 | Lodger | Social Worker | Oklahoma |
| 61 | Rosie F. Tallant | 37 | Lodger | Social Worker | Kansas |
| 62 | Gertrude Martin THIS PERSON | 46 | Head | Clerk | Oklahoma |
| 63 | Lois Martin | 18 | Daughter | Stenographer | Oklahoma |
| 64 | Elizabeth A. Martin | 12 | Daughter | — | Oklahoma |
| 65 | Charles E. Martin | 11 | Son | — | Oklahoma |
| 66 | Patricia Kelly | 12 | Granddaughter | — | Oklahoma |
| 67 | Lula M. Burke | 56 | Head | Home Policies | Ohio |
| 68 | Clarence B. Reese | 32 | Head | Guard | Oklahoma |
| 69 | Imogene A. Reese | 25 | Wife | — | Oklahoma |
| 70 | Sidney H. Wright | 32 | Head | Owner-Mgr. | Oklahoma |
| 71 | Bessie M. Wright | 28 | Wife | — | Kentucky |
| 72 | Scott M. Morton | 27 | Head | Office Clerk | Georgia |
| 73 | Molly A. Morton | 24 | Wife | — | Kansas |
| 74 | Julia A. O'Malley | 57 | In-law | — | Missouri |
| 75 | Esther O'Malley | 42 | Aunt | Secretary | Kansas |
| 76 | Beulah Riley | 42 | Head | Head Nurse | Illinois |
| 77 | Alice Riley | 76 | Mother | — | Kentucky |
| 78 | Charles Riley | 40 | Brother | Salesman | Illinois |
| 79 | Frank A. Slayton | 48 | Head | Conductor | Missouri |
| 80 | Marie E. Slayton | 46 | Wife | — | Oklahoma |
Pedigree Summary
Gertrude
Gen 1 · 1 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)