EM
Ernest Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Ernest Martin across the 1910, 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Mrs — first a head (b.~1885), then head of a 3-person household.
Age 55
b. ~1885
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Martin |
| Given Name | Ernest |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Motorman |
| Industry | Street Car Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Motorman |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1885 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ernest | Age | Birth yr |
|---|---|---|---|---|
| Anna Martin | Spouse | — | 52 | ~1888 |
| Wayne Martin | Son | — | 23 | ~1917 |
| Ernest Martin | Head | — | 55 | ~1885 |
Census Appearances
1910
Polk, Iowa
Son, age 26
Polk, Iowa · implied b. ~1884 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Earnest |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Iowa |
| Occupation | laborer |
| Industry | Gas Co. |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Polk, Iowa
Head, age 35
Polk, Iowa · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ernest |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Iowa |
| Occupation | Motorman |
| Industry | Street Car |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Head, age 45
Polk, Iowa · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ernest |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 26 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Iowa |
| Occupation | Motor Man |
| Industry | Street Car |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2700 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 55
Polk-County, Iowa · implied b. ~1885 — 3 household members
| Surname | Martin |
| Given Name | Ernest |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Motorman |
| Industry | Street Car Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | No 8 |
| 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 Ernest Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mrs Martin (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mrs Martin
b. ~1854
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ernest Martin
Head · 1940 · age 55 · b. ~1885 · Iowa
★ 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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01197-00101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Son Edward | None | M | — | — |
| 2 | Jack Edward | 0 | Son | — | Iowa |
| 3 | James D. Mccaffrey | 70 | Head | — | Indiana |
| 4 | Mary Mccaffrey | 63 | Wife | — | Illinois |
| 5 | Harry B. Rodgers | 32 | Head | Motorman | Iowa |
| 6 | Ruth Rodgers | 27 | Wife | — | Iowa |
| 7 | Harry Rodgers | 3 | Son | — | Iowa |
| 8 | Joan Rodgers | 0 | Daughter | — | Iowa |
| 9 | Milton Mahaffey | 34 | Head | Laborer | Illinois |
| 10 | Marie Mahaffey | 37 | Wife | — | Iowa |
| 11 | Arthur Johnson | 36 | Head | Wood Worker | Sweden |
| 12 | Esther Johnson | 36 | Wife | — | Sweden |
| 13 | Einar Johnson | 15 | Son | — | Iowa |
| 14 | Mary Anne Johnson | 12 | Daughter | — | Iowa |
| 15 | Eleanor Johnson | 11 | Daughter | — | Iowa |
| 16 | Donald Johnson | 9 | Son | — | Iowa |
| 17 | Sandra Johnson | 3 | Daughter | — | Iowa |
| 18 | Eli G. Traugh | 44 | Head | — | Illinois |
| 19 | Minna Traugh | 45 | Wife | Laundry | Kentucky |
| 20 | Ernest Traugh | 13 | Son | — | Iowa |
| 21 | Ernest Martin THIS PERSON | 55 | Head | Motorman | Iowa |
| 22 | Anna Martin | 52 | Wife | — | Iowa |
| 23 | Wayne Martin | 23 | Son | Receiving Clerk | Iowa |
| 24 | Otto Hansen | 51 | Head | Garage | Nebraska |
| 25 | Mary E. Hansen | 47 | Wife | — | Illinois |
| 26 | Arlie Hansen | 27 | Son | Farmer | Nebraska |
| 27 | Louise Hansen | 25 | Daughter | — | Nebraska |
| 28 | Joanne Hansen | 23 | Daughter | — | South Dakota |
| 29 | Henry A. Hansen | 21 | Son | — | South Dakota |
| 30 | Walter Hansen | 19 | Son | Elevator Man | South Dakota |
| 31 | Otto Jr. Hansen | 18 | Son | Loading | South Dakota |
| 32 | William Hansen | 16 | Son | — | South Dakota |
| 33 | Glenn Allison | 44 | Head | Laborer | Illinois |
| 34 | Garnet Allison | 31 | Wife | — | Nebraska |
| 35 | Everett Allison | 10 | Son | — | Iowa |
| 36 | Charlotte Allison | 8 | Daughter | — | Iowa |
| 37 | Edith Allison | 7 | Daughter | — | Iowa |
| 38 | Dale Allison | 5 | Daughter | — | Iowa |
| 39 | Ruth Allison | 4 | Daughter | — | Iowa |
| 40 | Lois Allison | 1 | Daughter | — | Iowa |
Pedigree Summary
Ernest
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)