MC
Mary Conley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Mary Conley across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Joseph & Mary — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Conley |
| Given Name | Mary Cecilia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marion |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Clerical |
| Industry | Indiana Bell |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Clerical |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Conley | Daughter | — | 22 | ~1918 |
| Anita Conley | Daughter | — | 25 | ~1915 |
| Joseph Conley | Head | — | 51 | ~1889 |
| Mary Conley | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Marion, Indiana
Daughter, age 2
Marion, Indiana · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conley |
| Given Name | Mary Cecilia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Daughter, age 12
Marion, Indiana · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conley |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Daughter, age 22
Marion-County, Indiana · implied b. ~1918 — 4 household members
| Surname | Conley |
| Given Name | Mary Cecilia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marion |
| 1935 Residence (County) | Marion |
| Occupation | Clerical |
| Industry | Indiana Bell |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Conley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Conley (~0.92 confidence) and mother Mary Conley (~0.92 confidence) and mother Mary Conley (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Conley
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Conley
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Conley
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Conley
Daughter · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Sibling
Anita Conley
Sibling · 1940 · age 25
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01126-00562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nanda Kelly | 13 | Daughter | — | Indiana |
| 42 | Norma J. Kelly | 10 | Daughter | — | Indiana |
| 43 | Mickle|Michle Kelly | 6 | Son | — | Indiana |
| 44 | Joseph Kelly | 4 | Son | — | Indiana |
| 45 | Rosella Kelly | 2 | Daughter | — | Indiana |
| 46 | Jacob Layton | 56 | Head | Gardener | Indiana |
| 47 | James Miller | 24 | Head | Driver | Indiana |
| 48 | Mary Miller | 22 | Wife | — | Indiana |
| 49 | Jane Ann Miller | 1 | Daughter | — | Indiana |
| 50 | Joseph Conley | 51 | Head | Doctor | Indiana |
| 51 | Mary Ellen Conley | 51 | Wife | — | Ohio |
| 52 | Anita Louise Conley | 25 | Daughter | Nursing | Indiana |
| 53 | Mary Cecilia Conley THIS PERSON | 22 | Daughter | Clerical | Indiana |
| 54 | Clarence Holmes | 43 | Head | Pool | Indiana |
| 55 | Maude Holmes | 44 | Wife | — | Indiana |
| 56 | Louis Holmes | 25 | Son | Contractor | Indiana |
| 57 | Ethel Palmer | 8 | Niece | — | Indiana |
| 58 | Clarence Bland | 32 | Brother-in-law | — | Indiana |
| 59 | Dallas Pusthough|Rusthough | 48 | Head | — | Indiana |
| 60 | Herbert Renton | 35 | Lodger | — | Ind |
| 61 | Jeanette Renton | 33 | Wife | — | Ind |
| 62 | Florence Cole | 20 | Wife | — | Indiana |
| 63 | Frank Cole | 24 | Head | — | Indiana |
| 64 | Ray Vivian | 50 | Lodger | Conductor | Indiana |
| 65 | Elizabeth Phillips | 42 | Head | — | Indiana |
| 66 | William Phillips | 18 | Son | — | Indiana |
| 67 | James Phillips | 16 | Son | — | Indiana |
| 68 | Betty Lou Phillips | 12 | Daughter | — | Indiana |
| 69 | Mary Ann Phillips | 7 | Daughter | — | Indiana |
| 70 | John Johnson | 42 | Head | Conductor | Illinois |
| 71 | Lucille Johnson | 24 | Wife | — | Indiana |
| 72 | Charles H. Grein | 62 | Head | Plumbing | Indiana |
| 73 | Mary E. Grein | 59 | Wife | — | Indiana |
| 74 | Carl F. Hesling | 47 | Head | — | Indiana |
| 75 | Margaret Hesling | 42 | Wife | — | Indiana |
| 76 | Robert Searcy | 40 | Head | Boiler Maker | Indiana |
| 77 | Vera Searcy | 46 | Wife | Case Press | Indiana |
| 78 | Robert Searcy | 18 | Son | — | Indiana |
| 79 | Daisy Searcy | 17 | Daughter | — | Indiana |
Pedigree Summary
Mary + 1 sibling
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 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)