MR
Mary Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Mary Ross across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed), with identified parents Camiel & Mary — first a daughter (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Female
Daughter
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Ross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Crescent Twp |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 810 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Teacher |
| Township / Ward | Crescent Twp |
| Est. Birth Year | ~1910 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Ross | Daughter | — | 30 | ~1910 |
| Marie Ross | Head | — | 58 | ~1882 |
| Morris Ross | Son | — | 24 | ~1916 |
Census Appearances
1920
Pottawattamie, Iowa
Daughter, age 10
Pottawattamie, Iowa · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Belgium |
| Mother's Birthplace | Belgium |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Pottawattamie, Iowa
Daughter, age 20
Pottawattamie, Iowa · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Belgium |
| Mother's Birthplace | Belgium |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Pottawattamie-County, Iowa
Daughter, age 30
Pottawattamie-County, Iowa · implied b. ~1910 — 3 household members
| Surname | Ross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Crescent Twp |
| 1935 Residence (County) | Pottawattamie |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 810 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Mary Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Camiel Ross (~0.92 confidence) and mother Mary Ross (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Camiel Ross
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Mary Ross
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Ross
Daughter · 1940 · age 30 · b. ~1910 · Iowa
★ You are viewing this record
Sibling
Morris Ross
Sibling · 1940 · age 24
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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01198-00129)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William S Coffelt | 22 | Son | Laborer | Iowa |
| 2 | Melvina Hale | 82 | Enuma | — | Iowa |
| 3 | Wallace A Oamek | 43 | Head | Farm Owner | Iowa |
| 4 | Alice M Oamek | 42 | Wife | — | Iowa |
| 5 | Katherine A Oamek | 17 | Daughter | — | Iowa |
| 6 | Joyce A Oamek | 14 | Daughter | — | Iowa |
| 7 | Le Roy Oamek | 12 | Son | — | Iowa |
| 8 | H. A. Terry | 57 | Head | Farm Owner | Iowa |
| 9 | Margaret Terry | 53 | Wife | — | West Virg |
| 10 | Harold A Terry | 28 | Head | Farm Renter | Iowa |
| 11 | Laura May Terry | 22 | Wife | — | Iowa |
| 12 | Judith May Terry | 1 | Daughter | — | Iowa |
| 13 | Louis E Wilding | 67 | Head | — | Iowa |
| 14 | Frances Wilding | 62 | Wife | — | Iowa |
| 15 | Adolph Dewaile | 55 | Head | Farm Owner | Belgium |
| 16 | Bertha Dewaile | 55 | Wife | — | Belgium |
| 17 | Raymond Dewaile | 21 | Son | Farm Hand | Iowa |
| 18 | Elenore Dewaile | 15 | Daughter | — | Iowa |
| 19 | Louie Dewaile | 12 | Son | — | Iowa |
| 20 | Walter Belt | 44 | Head | Section Hand | Iowa |
| 21 | Marie E Belt | 42 | Wife | — | Iowa |
| 22 | Lloyd N Belt | 20 | Son | Hired Hand | Iowa |
| 23 | Lennard L Belt | 16 | Son | Hired Hand | Iowa |
| 24 | Robert E Belt | 12 | Son | — | Iowa |
| 25 | Maxine M Belt | 6 | Daughter | — | Iowa |
| 26 | Fred W Bird | 52 | Head | Section Hand | England |
| 27 | Grace A Bird | 46 | Wife | — | Iowa |
| 28 | Fred W Bird | 17 | Son | Farm Hand | Iowa |
| 29 | Lucille E Bird | 15 | Daughter | — | Iowa |
| 30 | Mary Jane Bird | 13 | Daughter | — | Iowa |
| 31 | Robert E Bird | 10 | Son | — | Iowa |
| 32 | Melvin L Bird | 6 | Son | — | Iowa |
| 33 | Norma Jean Bird | 4 | Daughter | — | Iowa |
| 34 | Marie Ross | 58 | Head | — | Belgium |
| 35 | Mary Ross THIS PERSON | 30 | Daughter | School Teacher | Nebraska |
| 36 | Morris Ross | 24 | Son | Section Hand | Nebraska |
| 37 | Henry L Wilding | 38 | Head | Farmer Renter | Iowa |
| 38 | Margaret H Wilding | 31 | Wife | — | Col |
| 39 | Millard D Wilding | 6 | Son | — | Iowa |
| 40 | David O Wilding | 2 | Son | — | Iowa |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 2 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)