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Gertrude Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Adams-County, Illinois
Our Model Tree links this Gertrude Martin across the 1920, 1930 and 1940 US Censuses in Adams-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1902), then head of a 5-person household.
Age 38
b. ~1902
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, Illinois |
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Quincy |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Honey Creek Township |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| Charles Martin | Head | — | 48 | ~1892 |
| Alice Martin | Daughter | — | 11 | ~1929 |
| Wanda Martin | Daughter | — | 4 | ~1936 |
| Leona Martin | Daughter | — | 2 | ~1938 |
| Gertrude Martin | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Adams, Illinois
Spouse, age 18
Adams, Illinois · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Adams, Illinois
Other, age 28
Adams, Illinois · implied b. ~1902 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 16 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Adams-County, Illinois
Spouse, age 38
Adams-County, Illinois · implied b. ~1902 — 5 household members
| Surname | Martin |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Quincy |
| 1935 Residence (County) | Adams |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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.
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This person
Anchor record
Gertrude Martin
Spouse · 1940 · age 38 · b. ~1902 · Illinois
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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 — Adams-County, Illinois
Open full size
1940 US Federal Census — Adams-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00756-00264)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel S. Brothers | 78 | Head | Merchant | Illinois |
| 2 | Emma S. Brothers | 74 | Wife | — | Germany |
| 3 | Ray P. Folkrod | 50 | Head | Farmer | Illinois |
| 4 | Lillian Folkrod | 51 | Wife | — | Illinois |
| 5 | Ottilie Smith | 80 | Head | — | Illinois |
| 6 | Anna Smith | 43 | Daughter | — | Illinois |
| 7 | Dean Shankoltzer | 49 | Son-in-law | Line Foreman | Illinois |
| 8 | Ray Gantio | 44 | Head | Farmer | Illinois |
| 9 | Ray J. Ray | 41 | Head | Farmer | Illinois |
| 10 | Viola Ray | 26 | Wife | — | Illinois |
| 11 | Mildred Ray | 16 | Daughter | — | Illinois |
| 12 | Esther Ray | 7 | Daughter | — | Illinois |
| 13 | Victor Ray | 4 | Son | — | Illinois |
| 14 | Anna Shankoltzer | 52 | Head | Post Master | Illinois |
| 15 | Mary M. Blevins | 48 | Sister | — | Illinois |
| 16 | Everett C. Blevins | 48 | Brother-in-law | Custodian | Illinois |
| 17 | Mary Sue Blevins | 18 | Niece | — | Illinois |
| 18 | Everett Keith Blevins | 16 | Nephew | — | Illinois |
| 19 | Lois Ann Blevins | 14 | Niece | — | Illinois |
| 20 | Loren W. Marshall | 58 | Head | Farmer | Illinois |
| 21 | Cora E. Marshall | 55 | Wife | — | Illinois |
| 22 | Ruth L. Marshall | 35 | Daughter | School Teacher | Illinois |
| 23 | Owen Gray | 54 | Head | Labor | Illinois |
| 24 | Phoebe C. Gray | 58 | Wife | — | Illinois |
| 25 | Richard H. Monroe | 61 | Head | Farm Hand | Missouri |
| 26 | Ella Monroe | 63 | Wife | — | Missouri |
| 27 | Wayne H. Monroe | 26 | Son | Farm Hand | Missouri |
| 28 | Charles Martin | 48 | Head | Farm Hand | Illinois |
| 29 | Gertrude Martin THIS PERSON | 38 | Wife | — | Illinois |
| 30 | Alice Martin | 11 | Daughter | — | Illinois |
| 31 | Wanda Martin | 4 | Daughter | — | Illinois |
| 32 | Leona Martin | 2 | Daughter | — | Illinois |
| 33 | John R. Stahl | 31 | Head | Farmer | Illinois |
| 34 | Evelyn M. Stahl | 29 | Wife | — | Illinois |
| 35 | Lea B. Long | 59 | Head | Painter | Illinois |
| 36 | Lawrence J. Frese | 25 | Head | Farmer | Illinois |
| 37 | Kathryn Frese | 23 | Wife | — | Illinois |
| 38 | Nilus S. Wasson | 48 | Head | Farmer | Illinois |
| 39 | Mary Wasson | 45 | Wife | — | Illinois |
| 40 | Harold Wasson | 17 | Son | Farm Hand | Illinois |
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)