ID
Ida Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Gallatin-County, Montana
Our Model Tree links this Ida Davis across the 1920, 1930 and 1940 US Censuses in Gallatin-County, Montana (XGBoost, ~Confirmed), with identified parents Hiram & Nannie — first a head (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Head
Born: Missouri
Divorced
1940 Census Record Details
| Census Year | 1940 |
| Location | Gallatin-County, Montana |
| Surname | Davis |
| Given Name | Ida W. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Divorced |
| Birthplace | Missouri |
| 1935 Residence (City) | Bozeman |
| 1935 Residence (County) | Gallatin |
| Additional Details | |
| Occupation | Teacher |
| Industry | Gallatin Co High School |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 3491 |
| Highest Grade | C-5 |
| 1935 Residence | Montana |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Teacher |
| Township / Ward | Bozeman |
| Est. Birth Year | ~1880 |
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 Ida | Age | Birth yr |
|---|---|---|---|---|
| Ida Davis | Head | — | 60 | ~1880 |
| Grace Roeness | Other | — | 45 | ~1895 |
| George Roeness | Son | — | 18 | ~1922 |
Census Appearances
1920
Gallatin, Montana
Daughter, age 39
Gallatin, Montana · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ida W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Virginia |
| Occupation | Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Gallatin, Montana
Head, age 50
Gallatin, Montana · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ida W. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Virginia |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6600 |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Gallatin-County, Montana
Head, age 60
Gallatin-County, Montana · implied b. ~1880 — 3 household members
| Surname | Davis |
| Given Name | Ida W. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Divorced |
| Birthplace | Missouri |
| 1935 Residence (City) | Bozeman |
| 1935 Residence (County) | Gallatin |
| Occupation | Teacher |
| Industry | Gallatin Co High School |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 3491 |
| Highest Grade | C-5 |
| 1935 Residence | Montana |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Ida Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hiram Davis (~0.92 confidence) and mother Nannie Davis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hiram Davis
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Nannie Davis
b. ~1856
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ida Davis
Head · 1940 · age 60 · b. ~1880 · Montana
★ 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 — Gallatin-County, Montana
Open full size
1940 US Federal Census — Gallatin-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02220-00133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Holcomb | 21 | Hired | House Helper | Iowa |
| 42 | Harmon S. Lighter | 30 | Head | Accountant | Iowa |
| 43 | Phyllis A. Lighter | 25 | Wife | — | Iowa |
| 44 | Phyllis A. Lighter | 7 | Daughter | — | Montana |
| 45 | William Fearn | 29 | Head | Produce Tracker | Idaho |
| 46 | Emily Fearn | 21 | Wife | — | Utah |
| 47 | Eleanor Fearn | 3 | Daughter | — | Montana |
| 48 | Julia Fearn | 1 | Daughter | — | Montana |
| 49 | H. A. Bolinger | 67 | Head | Lawyer | Kansas |
| 50 | Mary Bolinger | 62 | Wife | — | Iowa |
| 51 | Marjorie Oleson | 17 | Friend | Student | Montana |
| 52 | Ralph E. Bodley | 54 | Head | Agricultural Agent | Nebraska |
| 53 | Bernice Bodley | 53 | Wife | — | Indiana |
| 54 | Russell Bodley | 23 | Son | Forest Work | Montana |
| 55 | Donald Bodley | 20 | Son | Art Surveying | Montana |
| 56 | Sarah Bodley | 69 | Mother in law | — | Indiana |
| 57 | Walter D. Schwertermann | 58 | Head | Ware House Labor | Oregon |
| 58 | Nellie Schwertermann | 56 | Wife | — | Minnesota |
| 59 | Angeline M. Schwertermann | 29 | Daughter | Stenographer | Montana |
| 60 | Thelma Schwertermann | 26 | Daughter | Book Keep | Montana |
| 61 | Raymond A. Schwertermann | 23 | Son | Chemist | Montana |
| 62 | Harry Fullerton | 44 | Head | Dentist | Iowa |
| 63 | Esther Fullerton | 45 | Wife | — | Minnesota |
| 64 | Jack Mcnallan | 14 | Step son | Student | Montana |
| 65 | James Crawford | 25 | Head | Auditor | Michigan |
| 66 | Bertha Crawford | 26 | Wife | Stenographer | New Jersey |
| 67 | Ida W. Davis THIS PERSON | 60 | Head | Teacher | Missouri |
| 68 | Grace Roeness | 45 | Sister | Deputy Clerk | Kansas |
| 69 | George Roeness | 18 | Son | Student | Montana |
| 70 | Bessie Mcfarland | 45 | Head | Food Nutrition Specialist | Kansas |
| 71 | Margaret Berghner | 5 | Friend | — | No Pay |
| 72 | Lois Bulla Cayson | 41 | Head | Librarian | Wyoming |
| 73 | Harvey Tuma | 50 | Head | Dentist | Ohio |
| 74 | Zuma Tuma | 46 | Wife | — | Washington |
| 75 | Eleanor Tuma | 23 | Daughter | Student | Montana |
| 76 | Dale Tuma | 18 | Son | Student | Montana |
| 77 | William Tuma | 12 | Son | — | Montana |
| 78 | Smith | None | — | — | — |
| 79 | Wm Hollingsworth | 58 | Head | Salesman | Iowa |
| 80 | Ella May Hollingsworth | 53 | Wife | — | Illinois |
Pedigree Summary
Ida
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)