MK
Mary Kelley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Mary Kelley across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents David & David — first a daughter (b.~1917), then head of a 9-person household.
Age 23
b. ~1917
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Kelley |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | bookkeeper |
| Industry | wholesale sausage mfg. company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1040 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Bookkeeper |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Kelley | Daughter | — | 23 | ~1917 |
| Loretta Kelley | Daughter | — | 21 | ~1919 |
| Grace Kelley | Daughter | — | 24 | ~1916 |
| Rosemary Kelley | Daughter | — | 13 | ~1927 |
| David Kelley | Head | — | 55 | ~1885 |
| Harvey Webster | Other | — | 38 | ~1902 |
| David Kelley | Son | — | 19 | ~1921 |
| Robert Kelley | Son | — | 17 | ~1923 |
| Grace Kelley | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Wayne, Michigan
Daughter, age 2
Wayne, Michigan · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Daughter, age 12
Wayne, Michigan · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Mary E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 23
Wayne-County, Michigan · implied b. ~1917 — 9 household members
| Surname | Kelley |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | bookkeeper |
| Industry | wholesale sausage mfg. company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1040 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Kelley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Kelley (~0.92 confidence) and father David Kelley (~0.92 confidence) and mother Grace Kelley (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Kelley
b. ~1886
Source father
● Household
· direct · ~0.92
Father
David Kelley
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Grace Kelley
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Kelley
Daughter · 1940 · age 23 · b. ~1917 · Michigan
★ You are viewing this record
Sibling
Rosemary Kelley
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Kelley
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Kelley
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Kelley
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Kelley
Sibling · 1940 · age 21
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01890-00324)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard H. Iii Stachowiak | 15 | Son | — | Michigan |
| 2 | Grace Patricia Stachowiak | 13 | Daughter | — | Michigan |
| 3 | Constance B. Stachowiak | 10 | Daughter | — | Michigan |
| 4 | James B. Stachowiak | 8 | Son | — | Michigan |
| 5 | William E. Stachowiak | 3 | Son | — | Michigan |
| 6 | Julia G. Van Norman | 72 | Mother-in-law | — | Illinois |
| 7 | — | None | — | — | — |
| 8 | Louis P. Maloney | 45 | Head | Branch Manager | Canada-English |
| 9 | Gertrude A. Maloney | 39 | Wife | — | Canada-English |
| 10 | Irene M. Maloney | 17 | Daughter | — | Michigan |
| 11 | John L. Maloney | 10 | Son | — | Michigan |
| 12 | Marian E. Maloney | 4 | Daughter | — | Michigan |
| 13 | Gerald P. Maloney | 2 | Son | — | Michigan |
| 14 | Lester T. Batdorff | 49 | Head | General Manager | Michigan |
| 15 | Geraldine M. Batdorff | 46 | Wife | — | Michigan |
| 16 | Richard W. Batdorff | 21 | Son | Timekeeper | Michigan |
| 17 | Donald H. Batdorff | 19 | Son | — | Michigan |
| 18 | Phyllis M. Batdorff | 17 | Daughter | — | Michigan |
| 19 | Albert J. Ellenbusch | 58 | Head | General Clerk Stores Dept. | Canada-English |
| 20 | Anne T. Ellenbusch | 51 | Wife | — | New York |
| 21 | Rita M. Ellenbusch | 24 | Daughter | General Office Clerk | Michigan |
| 22 | Alma T. Ellenbusch | 22 | Daughter | Clerk Mortgage Dept. | Michigan |
| 23 | David P. Kelley | 55 | Head | Manager | Michigan |
| 24 | Grace G. Kelley | 55 | Wife | — | Michigan |
| 25 | Grace M. Kelley | 24 | Daughter | Stenographer | Michigan |
| 26 | Mary E. Kelley THIS PERSON | 23 | Daughter | Bookkeeper | Michigan |
| 27 | Loretta E. Kelley | 21 | Daughter | Stenographer | Michigan |
| 28 | David P. Jr. Kelley | 19 | Son | Salesman | Michigan |
| 29 | Robert J. Kelley | 17 | Son | Newsboy | Michigan |
| 30 | Rosemary T. Kelley | 13 | Daughter | — | Michigan |
| 31 | Harvey R. Webster | 38 | Brother-in-law | General Clerk | Michigan |
| 32 | Matthew L. Cowan | 60 | Head | Maintenance | New York |
| 33 | Elizabeth Cowan | 53 | Wife | — | Canada-English |
| 34 | Helen J. Cowan | 22 | Daughter | Sales Girl | Michigan |
| 35 | H. Richman Smith | 34 | Head | Payroll Asst. Supervisor | Michigan |
| 36 | Grace H. Smith | 32 | Wife | — | Michigan |
| 37 | Marilyn G. Smith | 8 | Daughter | — | Michigan |
| 38 | Shirley J. Smith | 5 | Daughter | — | Michigan |
| 39 | Edward A. Paeboldt | 34 | Head | Teacher | Michigan |
| 40 | Lillian M. Paeboldt | 34 | Wife | — | Michigan |
Pedigree Summary
Mary + 5 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 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)