DM
Dorothy Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Keokuk-County, Iowa
Our Model Tree links this Dorothy Martin across the 1920, 1930 and 1940 US Censuses in Keokuk-County, Iowa (XGBoost, ~Confirmed), with identified parents Bertha & Hugh — first a daughter (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Keokuk-County, Iowa |
| Surname | Martin |
| Given Name | Dorothy A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Keokuk |
| Additional Details | |
| Occupation | Teacher |
| Industry | Rural School |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Teacher |
| Township / Ward | What Cheer City |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Catherine Martin | Daughter | — | 13 | ~1927 |
| Phyllis Martin | Daughter | — | 14 | ~1926 |
| Dorothy Martin | Daughter | — | 22 | ~1918 |
| Julia Martin | Daughter | — | 16 | ~1924 |
| Hugh Martin | Head | — | 49 | ~1891 |
| Leo Martin | Son | — | 18 | ~1922 |
| Paul Martin | Son | — | 7 | ~1933 |
| Regina Martin | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Keokuk, Iowa
Daughter, age 2
Keokuk, Iowa · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martins |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Keokuk, Iowa
Daughter, age 12
Keokuk, Iowa · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Keokuk-County, Iowa
Daughter, age 22
Keokuk-County, Iowa · implied b. ~1918 — 8 household members
| Surname | Martin |
| Given Name | Dorothy A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Keokuk |
| Occupation | Teacher |
| Industry | Rural School |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Dorothy Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Bertha Martin (~0.92 confidence) and father Hugh Martin (~0.92 confidence) and father Hugh Martin (~0.92 confidence) and mother Regina Martin (~0.92 confidence) and mother Regina Martins (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bertha Martin
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
Hugh Martin
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Hugh Martin
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Regina Martin
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Regina Martins
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Martin
Daughter · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Phyllis Martin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Martin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Keokuk-County, Iowa
Open full size
1940 US Federal Census — Keokuk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01172-01094)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William B. Dixon | 43 | Head | Doctor | Iowa |
| 2 | Gloria M. Dixon | 43 | Wife | — | Iowa |
| 3 | Lila Dayn Dixon | 15 | Daughter | — | Iowa |
| 4 | Locelyn Joan Dixon | 9 | Daughter | — | Iowa |
| 5 | Theresa Hickman | 83 | Mother-in-law | — | Iowa |
| 6 | Hazel S. Grems | 41 | Head | — | Iowa |
| 7 | Lyle A. Grems | 17 | Son | — | Missouri |
| 8 | Elmer E. Grems | 16 | Son | — | Missouri |
| 9 | Eraldeen Grems | 14 | Son | — | Iowa |
| 10 | Mary K. Grems | 12 | Daughter | — | Iowa |
| 11 | Hugh T. Martin | 49 | Head | Mail Carrier | Iowa |
| 12 | Regina A. Martin | 49 | Wife | — | Iowa |
| 13 | Dorothy A. Martin THIS PERSON | 22 | Daughter | Teacher | Iowa |
| 14 | Leo J. Martin | 18 | Son | — | Iowa |
| 15 | Julia A. Martin | 16 | Daughter | — | Iowa |
| 16 | Phyllis J. Martin | 14 | Daughter | — | Iowa |
| 17 | Catherine J. Martin | 13 | Daughter | — | Iowa |
| 18 | Paul H. Martin | 7 | Son | — | Iowa |
| 19 | De Wayne E. Brown | 45 | Head | Sales Mgr. | Iowa |
| 20 | Elva J. Brown | 41 | Wife | — | Minnesota |
| 21 | Robert D. Brown | 16 | Son | — | Iowa |
| 22 | Mahlon N. Brown | 15 | Son | — | Iowa |
| 23 | Bina Brown | 66 | Mother | — | Illinois |
| 24 | Daniel S. Lawrence | 40 | Head | Barber | Iowa |
| 25 | Eva Lawrence | 37 | Wife | — | Iowa |
| 26 | Ronald Lawrence | 5 | Son | — | Iowa |
| 27 | Bertley A. Clutter | 63 | Head | Druggist | Ohio |
| 28 | Bessie W. Clutter | 58 | Wife | — | Iowa |
| 29 | Bertley A. Jr. Clutter | 30 | Son | Salesman | Iowa |
| 30 | Doris V. Ab. Clutter | 28 | Daughter | Teacher | Iowa |
| 31 | John W. Mclean | 68 | Head | Manager | Iowa |
| 32 | Elva E. Mclean | 65 | Wife | — | Iowa |
| 33 | Emma Mccord | 54 | Head | — | Germany |
| 34 | Robert W. Mccord | 28 | Son | Laborer | Iowa |
| 35 | Mary W. Mccord | 18 | Daughter | — | Iowa |
| 36 | Donald W. Mccord | 15 | Son | — | Iowa |
| 37 | Eugene W. Mccord | 11 | Son | — | Iowa |
| 38 | William E. Lawrence | 76 | Head | — | Iowa |
| 39 | Millie Brown | 50 | Head | — | Iowa |
| 40 | Elmer R. Wagner | 30 | Head | Laborer | Iowa |
Pedigree Summary
Dorothy + 5 siblings
Gen 1 · 5 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)