MT
Mary Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Calhoun, Michigan
Our Model Tree links this Mary Thomas across the 1910, 1920 and 1930 US Censuses in Calhoun, Michigan (XGBoost, ~Confirmed), with identified parents Frank & Frank — first a daughter (b.~1903), then head of a 7-person household.
Age 27
b. ~1903
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Calhoun, Michigan |
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Tekonsha Township |
| Est. Birth Year | ~1903 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Blanche Thomas | Daughter | — | 12 | ~1918 |
| Bessie Thomas | Daughter | — | 12 | ~1918 |
| Mary Thomas | Daughter | — | 27 | ~1903 |
| Ruth Thomas | Daughter | — | 16 | ~1914 |
| Frank Thomas | Head | — | 58 | ~1872 |
| Louise Thomas | Other | — | 54 | ~1876 |
| Walter Thomas | Son | — | 19 | ~1911 |
Census Appearances
1910
Calhoun, Michigan
Daughter, age 7
Calhoun, Michigan · implied b. ~1903 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
Calhoun, Michigan
Daughter, age 17
Calhoun, Michigan · implied b. ~1903 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Calhoun, Michigan
Daughter, age 27
Calhoun, Michigan · implied b. ~1903 — 7 household members
| Surname | Thomas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Thomas across 3 US Census years (1910, 1920 and 1930) in Calhoun, Michigan, using XGBoost record linkage. Identified parents: father Frank Thomas (~0.92 confidence) and father Frank Thomas (~0.92 confidence) and mother Louise Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Thomas
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Frank Thomas
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Louise Thomas
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Thomas
Daughter · 1930 · age 27 · b. ~1903 · Michigan
★ You are viewing this record
Sibling
Walter Thomas
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Thomas
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Thomas
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Thomas
Sibling · 1930 · age 12
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
1930 US Federal Census — Calhoun, Michigan
Open full size
1930 US Federal Census — Calhoun, Michigan
Page Contents
49 people indexed on this census page (ia:1930:michigancensus00reel979:0689)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Thomas | 58 | Head | Farmer | Michigan |
| 2 | Louise Thomas | 54 | Wife-H | — | Michigan |
| 3 | Mary Thomas THIS PERSON | 27 | Daughter | — | Michigan |
| 4 | Walter Thomas | 19 | Son | Laborer | Michigan |
| 5 | Ruth Thomas | 16 | Daughter | — | Michigan |
| 6 | Bessie Thomas | 12 | Daughter | — | Michigan |
| 7 | Blanche Thomas | 12 | Daughter | — | Michigan |
| 8 | Eli Polloch | 49 | Head | Farmer | Indiana |
| 9 | Bessie Polloch | 39 | Wife-H | — | Indiana |
| 10 | William Reincke | 51 | Head | Farmer | Michigan |
| 11 | Cornelia Reincke | 47 | Wife-H | — | New York |
| 12 | Arley Cutchall | 26 | Son-in-law | Proprietor | Ohio |
| 13 | Lela Cutchall | 24 | Daughter | — | Michigan |
| 14 | Oliver Drushall | 33 | Head | Farmer | Indiana |
| 15 | Maud Drushall | 23 | Wife-H | — | Indiana |
| 16 | Bernadine Drushall | 3 | Daughter | — | Indiana |
| 17 | Earl Drushall | 1 | Son | — | Michigan |
| 18 | Robert Bennett | 15 | Nephew | — | Indiana |
| 19 | Stephen Stroah | 73 | Father-in-law | — | Indiana |
| 20 | Ernest Waffle | 32 | Head | Farmer | Michigan |
| 21 | Dorothy Waffle | 30 | Wife-H | — | Michigan |
| 22 | Richard Waffle | 12 | Son | — | Michigan |
| 23 | Junior Waffle | 9 | Son | — | Michigan |
| 24 | Carl Waffle | 7 | Son | — | Michigan |
| 25 | Frank Keyes | 51 | Boarder | Laborer | Michigan |
| 26 | Marshall Upston | 30 | R | Car Repairer | Michigan |
| 27 | Glenda Upston | 29 | Wife-H | — | Michigan |
| 28 | Jack Upston | 4 | Son | — | Michigan |
| 29 | Joan Upston | 2 | Daughter | — | Michigan |
| 30 | Henry Upston | None | Boarder | Farmer | Michigan |
| 31 | Clarence Chapman | 61 | Head | Farmer | Michigan |
| 32 | Emma Chapman | 45 | Wife-H | — | Michigan |
| 33 | Elva Doolittle | 52 | Head | Proprietor | Michigan |
| 34 | George Schaefer | 44 | Head | Farmer | Indiana |
| 35 | Grace Schaefer | 40 | Wife-H | — | Indiana |
| 36 | Kenneth Schaefer | 16 | Son | — | Michigan |
| 37 | Dorothy Schaefer | 15 | Daughter | — | Michigan |
| 38 | Ward Nickerson | 31 | Brother-in-law | Chauffeur | Indiana |
| 39 | Charles Mcchenie | 48 | Head | Manager | Indiana |
| 40 | Beulah Mcchenie | 39 | Wife-H | Assistant | Indiana |
| 41 | Lewis Mcchenie | 12 | Son | — | Michigan |
| 42 | Lucile Mcchenie | 11 | Daughter | — | Michigan |
| 43 | Marlin Mcchenie | 8 | Son | — | Michigan |
| 44 | Marion Baker | 18 | Servant | Maid | Michigan |
| 45 | Albert Hornberger | 50 | Head | Farmer | Michigan |
| 46 | Ida Hornberger | 43 | Wife-H | — | Michigan |
| 47 | Harlow Hornberger | 17 | Son | — | Michigan |
| 48 | Gladys Hornberger | 14 | Daughter | — | Michigan |
| 49 | Donald Hornberger | 12 | Son | — | Michigan |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)