MC
Mary Cooper — 1930 US Census Record
Model Tree available1930 United States Federal Census · Marion, Indiana
Our Model Tree links this Mary Cooper across the 1910, 1920 and 1930 US Censuses in Marion, Indiana (XGBoost, ~Confirmed), with identified parents John & Lyda — first a daughter (b.~1908), then head of a 4-person household.
Age 22
b. ~1908
Female
Daughter
Born: Indiana
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Marion, Indiana |
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1908 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cooper | Daughter | — | 22 | ~1908 |
| John Ruhart | Head | — | 51 | ~1879 |
| William Cooper | Other | — | 27 | ~1903 |
| Lillie Ruhart | Other | — | 39 | ~1891 |
Census Appearances
1910
Marion, Indiana
Daughter, age 3
Marion, Indiana · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Write | English |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marion, Indiana
Daughter, age 12
Marion, Indiana · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Daughter, age 22
Marion, Indiana · implied b. ~1908 — 4 household members
| Surname | Cooper |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Cooper across 3 US Census years (1910, 1920 and 1930) in Marion, Indiana, using XGBoost record linkage. Identified parents: father John Ruhart (~0.92 confidence) and mother Lyda Cooper (~0.92 confidence) and father Jessie Cooper (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Ruhart
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Lyda Cooper
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Jessie Cooper
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Cooper
Daughter · 1930 · age 22 · b. ~1908 · Indiana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Marion, Indiana
Open full size
1930 US Federal Census — Marion, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel616:0495)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Nice | 54 | Head | Elevator Operator | Kentucky |
| 2 | Miranda Nice | 51 | Wife-H | — | Indiana |
| 3 | Glen Nice | 21 | Son | Core-Maker | Indiana |
| 4 | Walter Sunday | 43 | Head | Fireman | Ohio |
| 5 | Louise Sunday | 60 | Wife-H | — | Indiana |
| 6 | Enos Lamb | 72 | Roomer | — | Indiana |
| 7 | Lillie Emerick | 31 | Roomer | Tank Filler | Kentucky |
| 8 | John Ruhart | 51 | Head | Decorator | Indiana |
| 9 | Lillie Ruhart | 39 | Wife-H | Clerk & Salesman | Indiana |
| 10 | William Cooper | 27 | Son-in-law | Decorator | Kentucky |
| 11 | Mary Cooper THIS PERSON | 22 | Daughter | — | Indiana |
| 12 | Robert Clark | 32 | Head | Woodworker | Indiana |
| 13 | Minerva Clark | 55 | Wife-H | — | Indiana |
| 14 | Bert Jones | 46 | Head | Conductor | Indiana |
| 15 | Lillian Jones | 41 | Wife-H | — | Indiana |
| 16 | Beatrice Jones | 21 | Daughter | Comptometer | Indiana |
| 17 | Delia Cherry | 20 | Daughter | — | Michigan |
| 18 | Henry Jeffries | 51 | Head | Pipe-Fitter | Indiana |
| 19 | Ida Jeffries | 51 | Wife-H | — | Indiana |
| 20 | Ernest Pratt | 20 | Nephew | Pattern Maker | Indiana |
| 21 | Sarah Ellin | 83 | Grandmother | — | Indiana |
| 22 | Marion Wilson | 5 | Boarder | — | Indiana |
| 23 | John Van Ralen | 49 | Head | Paper Maker | Ohio |
| 24 | Mary Van Ralen | 45 | Wife-H | Waitress | Indiana |
| 25 | Dale Crittenden | 11 | Nephew | — | Indiana |
| 26 | Billie Mcmanaman | 6 | Roomer | — | Indiana |
| 27 | Frank Shal | 69 | Head | Chain Operator | Indiana |
| 28 | Lydia Shal | 52 | Wife-H | — | Indiana |
| 29 | Beulah Powell | 21 | Daughter | Clerk & Salesman | Indiana |
| 30 | Ursula Powell | 7 | Granddaughter | — | Indiana |
| 31 | Joseph Whininger | 58 | Head | Carpenter | Illinois |
| 32 | Mary Whininger | 39 | Wife-H | — | Indiana |
| 33 | Robert Haydon | 13 | Son | — | Indiana |
| 34 | Phillip Haydon | 11 | Son | — | Indiana |
| 35 | Pauline Haydon | 10 | Son | — | Indiana |
| 36 | Anna Cooper | 48 | Head-H | Power Machine | Indiana |
| 37 | William Huntley | 77 | Father | — | Indiana |
| 38 | Charles Cooper | 15 | Son | — | Indiana |
| 39 | Walter Thomas | 47 | Head | Operator Linotype | Indiana |
| 40 | Grace Thomas | 43 | Wife-H | — | Indiana |
| 41 | Georgia Thomas | 22 | Daughter | Bookkeeper | Indiana |
| 42 | Fred Griffin | 46 | Head | Salesman | Indiana |
| 43 | Martha Griffin | 42 | Wife-H | — | Indiana |
| 44 | Robert Miller | 24 | Daughter | Shirt Finisher | Indiana |
| 45 | Robert Griffin | 17 | Son | — | Indiana |
| 46 | James Miller | 3 | Grandson | — | Indiana |
| 47 | Grace Thomas | 65 | Head | Laborer | Indiana |
| 48 | John Thomas | 28 | Son | — | Kentucky |
| 49 | Martha Black | 67 | Mother | — | Indiana |
| 50 | John Natchi | 30 | Head | Electrician | Jugo Slavia |
Pedigree Summary
Mary
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)