MD
Mary Dudley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Mary Dudley across the 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Dudley |
| Given Name | Mary Ella |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Orion township |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Highest Grade | S-9 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Orion Township |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Catherine Dudley | Spouse | — | 45 | ~1895 |
| Oryl Dudley | Head | — | 60 | ~1880 |
| Oryl Dudley | Son | — | 14 | ~1926 |
| Mary Dudley | Daughter | — | 15 | ~1925 |
| C Dudley | Son | — | 8 | ~1932 |
| Phyllis Dudley | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Oakland, Michigan
Daughter, age 5
Oakland, Michigan · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dudley |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Daughter, age 15
Oakland-County, Michigan · implied b. ~1925 — 6 household members
| Surname | Dudley |
| Given Name | Mary Ella |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Orion township |
| 1935 Residence (County) | Oakland |
| Highest Grade | S-9 |
| 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 Dudley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dudley
Daughter · 1940 · age 15 · b. ~1925 · Michigan
★ You are viewing this record
Sibling
Oryl Dudley
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Dudley
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
C Dudley
Sibling · 1940 · age 8
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-t0627-01800-00319)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josephine Rhodes | 32 | Head | — | Michigan |
| 2 | Alice Jane Rhodes | 6 | Daughter | — | Michigan |
| 3 | Charlotte Ann Rhodes | 3 | Daughter | — | Michigan |
| 4 | John C. Austin | 45 | Head | Auditor | Michigan |
| 5 | Agnes D. Austin | 44 | Wife | — | Michigan |
| 6 | Harry S. Ahlborn | 49 | Head | Photographer | India |
| 7 | Beryl A. Ahlborn | 43 | Wife | — | Michigan |
| 8 | Harry S. Ahlborn | 17 | Son | — | Michigan |
| 9 | Arthur G. Ahlborn | 13 | Son | — | Michigan |
| 10 | Fred Leslie Smith | 38 | Head | Chest-Up Foreman | Illinois |
| 11 | Elsie Smith | 38 | Wife | — | Kansas |
| 12 | Burdett C. Smith | 19 | Son | Supply Steward | Iowa |
| 13 | Berdell L. Smith | 17 | Son | — | Iowa |
| 14 | Charles E. Davis | 38 | Head | Motor Repairman | Missouri |
| 15 | Alice M. Davis | 36 | Wife | — | Illinois |
| 16 | William Davis | 19 | Son | New Worker | Illinois |
| 17 | Clyde Davis | 16 | Son | New Worker | Missouri |
| 18 | Charles Davis | 12 | Son | — | Michigan |
| 19 | Norma Davis | 9 | Daughter | — | Michigan |
| 20 | Jacobus Van Marle | 43 | Head | Machinist | Holland |
| 21 | Pearl Van Marle | 37 | Wife | — | Michigan |
| 22 | Margaret Van Marle | 13 | Daughter | — | Michigan |
| 23 | Frank Van Marle | 53 | Head | Laborer | Holland |
| 24 | Walter Gingell | 64 | Head | — | Michigan |
| 25 | Edith Gingell | 56 | Wife | — | Canada |
| 26 | Mildred E. Gingell | 31 | Daughter | Grade Teacher | Michigan |
| 27 | Joseph W. Songrath | 52 | Head | Tool-Grinder | Germany |
| 28 | Beryl Songrath | 42 | Wife | — | Michigan |
| 29 | Donald Songrath | 21 | Son | New Worker | Michigan |
| 30 | Leonard Gillett | 35 | Hired-hand | Farm Laborer | Michigan |
| 31 | Oryl Dudley | 60 | Head | Road Laborer | Michigan |
| 32 | Catherine Dudley | 45 | Wife | — | Michigan |
| 33 | Mary Ella Dudley THIS PERSON | 15 | Daughter | — | Michigan |
| 34 | Oryl J. Dudley | 14 | Son | — | Michigan |
| 35 | Phyllis Dudley | 11 | Daughter | — | Michigan |
| 36 | C. A. Dudley | 8 | Son | — | Michigan |
| 37 | Arthur Mason Cockrum | 39 | Head | Spot Welder | Indiana |
| 38 | Eunice Cockrum | 24 | Wife | — | Indiana |
| 39 | Howard Rayner | 48 | Head | Laborer | Michigan |
| 40 | Hazel Rayner | 34 | Wife | — | Missouri |
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)