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Mary Mccann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Mary Mccann across the 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | McCann |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Wayne Twp |
| Est. Birth Year | ~1926 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patricia Mccann | Daughter | — | 9 | ~1931 |
| John Mccann | Son | — | 1 | ~1939 |
| Robert Mccann | Son | — | 9 | ~1931 |
| Roger Mccann | Head | — | 41 | ~1899 |
| Mary Mccann | Daughter | — | 14 | ~1926 |
| Roger Mccann | Son | — | 13 | ~1927 |
| Nellie Mccann | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Marion, Indiana
Daughter, age 2
Marion, Indiana · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCain |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Daughter, age 14
Marion-County, Indiana · implied b. ~1926 — 7 household members
| Surname | McCann |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Income (1939) | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Indiana |
| 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 Mccann across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mccann
Daughter · 1940 · age 14 · b. ~1926 · Indiana
★ You are viewing this record
Sibling
Roger Mccann
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mccann
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mccann
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mccann
Sibling · 1940 · age 9
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
40 people indexed on this census page (nara:1940:m-t0627-01076-01131)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George Campbell | 40 | Head | Laborer | Mississippi |
| 2 | Florence Campbell | 36 | Wife | Housewife | Mississippi |
| 3 | George Campbell | 16 | Son | — | Indiana |
| 4 | Lawrence Campbell | 15 | Son | — | Mississippi |
| 5 | Robert Campbell | 13 | Son | — | Indiana |
| 6 | Ernest Campbell | 11 | Son | — | Indiana |
| 7 | Frank Campbell | 9 | Son | — | Indiana |
| 8 | James Campbell | 1 | Son | — | Indiana |
| 9 | Eliza Edwards | 66 | Mother-in-law | — | Mississippi |
| 10 | Morris Roche | 34 | Head | — | Tennessee |
| 11 | Hugh Roche | 18 | Son | 1 | Indiana |
| 12 | Juanita Roche | 15 | Daughter | — | Indiana |
| 13 | Doris Roche | 13 | Daughter | — | Indiana |
| 14 | Ethel Roche | 10 | Daughter | — | Indiana |
| 15 | Betty Roche | 8 | Daughter | — | Indiana |
| 16 | Albert Eppes | 40 | Head | — | Tennessee |
| 17 | Clema Eppes | 45 | Wife | — | Tennessee |
| 18 | Mayme Eppes | 22 | Daughter | Seamstress | Indiana |
| 19 | Henry Rauer | 33 | Head | Butcher | Tennessee |
| 20 | Mozell Rauer | 30 | Wife | Housewife | Tennessee |
| 21 | Julia Porter | 51 | Lodger | — | Kentucky |
| 22 | Roger Mccann | 41 | Head | Laborer | Indiana |
| 23 | Nellie Mccann | 42 | Wife | Housewife | Kentucky |
| 24 | Mary Mccann THIS PERSON | 14 | Daughter | — | Indiana |
| 25 | Roger Mccann | 13 | Son | — | Indiana |
| 26 | Patricia Mccann | 9 | Daughter | — | Indiana |
| 27 | Robert Mccann | 9 | Son | — | Indiana |
| 28 | John Mccann | 1 | Son | — | Indiana |
| 29 | Calvin Payne | 57 | Head | Farmer | Tennessee |
| 30 | Anne Payne | 56 | Wife | Housewife | Tennessee |
| 31 | George Payne | 19 | Son | Laborer | Tennessee |
| 32 | Andrew Payne | 17 | Son | — | Tennessee |
| 33 | Jane Johnson | 8 | Granddaughter | — | Indiana |
| 34 | Clarence Johnson | 6 | Grandson | — | Indiana |
| 35 | Gloria Johnson | 4 | Granddaughter | — | Indiana |
| 36 | Jennie Hess | 84 | Mother-in-law | — | Tennessee |
| 37 | James Applegate | 55 | Head | Painter | Indiana |
| 38 | Lillie Applegate | 52 | Wife | Housewife | Indiana |
| 39 | Alford Applegate | 30 | Son | Painter | Indiana |
| 40 | Cora Applegate | 30 | Daughter-in-law | Waitress | Indiana |
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)