MK
Mary Kinney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Mary Kinney across the 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Kinney |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Pontiac |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Pontiac |
| Est. Birth Year | ~1927 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Wallace Kinney | Head | — | 46 | ~1894 |
| William Kinney | Son | — | 22 | ~1918 |
| Katherine Kinney | Spouse | — | 46 | ~1894 |
| Mary Kinney | Daughter | — | 13 | ~1927 |
| Robert Campbell | Other | — | 97 | ~1843 |
| James Kinney | Son | — | 20 | ~1920 |
Census Appearances
1930
Oakland, Michigan
Daughter, age 3
Oakland, Michigan · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kinney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Ohio |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Daughter, age 13
Oakland-County, Michigan · implied b. ~1927 — 6 household members
| Surname | Kinney |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Pontiac |
| 1935 Residence (County) | Oakland |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Kinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kinney
Daughter · 1940 · age 13 · b. ~1927 · Michigan
★ You are viewing this record
Sibling
James Kinney
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kinney
Sibling · 1940 · age 22
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 — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01801-00079)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joan F. Lefurgy | 18 | Daughter | — | Michigan |
| 42 | Willis Emma Lefurgy | 77 | Mother-in-law | — | Michigan |
| 43 | John H. Hansard | 38 | Head | Paint Mixer | Michigan |
| 44 | Donna C. Hansard | 33 | Wife | — | Michigan |
| 45 | Lewis Grimm | 40 | Head | Mechanic | Pennsylvania |
| 46 | Vivian R. Grimm | 31 | Wife | — | Michigan |
| 47 | Thelma J. Grimm | 5 | Daughter | — | Michigan |
| 48 | Mary E. Grimm | 4 | Daughter | — | Michigan |
| 49 | Daniel E. Grimm | 0 | Son | — | Michigan |
| 50 | Hilliard A. Linehan | 54 | Head | Brick Mason | Michigan |
| 51 | Zelda R. Linehan | 37 | Wife | — | Michigan |
| 52 | Russell E. Wilson | 43 | Head | Polisher | Kansas |
| 53 | Emma Wilson | 42 | Wife | — | Michigan |
| 54 | Melvin W. Sheppard | 72 | Head | — | Michigan |
| 55 | Venetta M. Sheppard | 70 | Wife | — | Michigan |
| 56 | Alba G. Wentworth | 55 | Head | Yard Foreman | New Hampshire |
| 57 | Nettie M. Wentworth | 53 | Wife | — | Vermont |
| 58 | Ruth Wentworth | 20 | Daughter | Typist | Vermont |
| 59 | William A. Sherwood | 40 | Head | Assemblyman | Michigan |
| 60 | Minnie I. Sherwood | 40 | Wife | Clerk | Michigan |
| 61 | Charles M. Hicklas | 69 | Head | Oiler | Michigan |
| 62 | Alice E. Hicklas | 67 | Wife | — | Michigan |
| 63 | Alfred J. Stone | 48 | Head | Car Inspector | England |
| 64 | Rose J. Stone | 39 | Wife | — | Michigan |
| 65 | George E. Stone | 5 | Son | — | Michigan |
| 66 | Harold A. Powell | 53 | Head | Clerical | Ohio |
| 67 | Hannah C. Powell | 53 | Wife | — | Massachusetts |
| 68 | Lawrence A. Powell | 16 | Son | — | Illinois |
| 69 | Lester E. Campbell | 59 | Head | Assemblyman | Indiana |
| 70 | Mary J. Campbell | 55 | Wife | — | Indiana |
| 71 | Magdalene L. Campbell | 18 | Daughter | — | Indiana |
| 72 | Eugene F. Campbell | 15 | Son | — | Indiana |
| 73 | George Conway | 59 | Lodger | Engineer | Michigan |
| 74 | Burton Darrow | 39 | Lodger | Assemblyman | Indiana |
| 75 | Wallace M. Kinney | 46 | Head | Steam Engineer | Michigan |
| 76 | Katherine M. Kinney | 46 | Wife | — | Ohio |
| 77 | William E. Kinney | 22 | Son | Inspector | Michigan |
| 78 | James M. Kinney | 20 | Son | Truck Driver | Michigan |
| 79 | Mary E. Kinney THIS PERSON | 13 | Daughter | — | Michigan |
| 80 | Robert P. Campbell | 97 | Father-in-law | — | Ohio |
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)