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Mary Leonard — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Oakland, Michigan
Our Model Tree links this Mary Leonard across the 1930 and 1940 US Censuses in Oakland, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 12-person household.
Age 7
b. ~1923
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Oakland, Michigan |
| Surname | Leonard |
| Given Name | Mary E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Lake Orion Village |
| Est. Birth Year | ~1923 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Charlotte Leonard | Daughter | — | 18 | ~1912 |
| Edna Leonard | Daughter | — | 16 | ~1914 |
| Mary Leonard | Daughter | — | 7 | ~1923 |
| Jean Leonard | Daughter | — | 13 | ~1917 |
| Cornelius Leonard | Head | — | 45 | ~1885 |
| Ruth Leonard | Other | — | 43 | ~1887 |
| Charles Leonard | Son | — | 20 | ~1910 |
| John Leonard | Son | — | 1 | ~1929 |
| Donald Leonard | Son | — | 12 | ~1918 |
| Jerry Leonard | Son | — | 15 | ~1915 |
| Phillip Leonard | Son | — | 5 | ~1925 |
| Neal Leonard | Son | — | 10 | ~1920 |
Census Appearances
1930
Oakland, Michigan
Daughter, age 7
Oakland, Michigan · implied b. ~1923 — 12 household members
| Surname | Leonard |
| Given Name | Mary E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Daughter, age 16
Oakland-County, Michigan · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Pontiac City |
| 1935 Residence (County) | Oakland |
| Highest Grade | Hs 2 |
| 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 Leonard across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Leonard
Daughter · 1930 · age 7 · b. ~1923 · Michigan
★ You are viewing this record
Sibling
Edna Leonard
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Leonard
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Leonard
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Leonard
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Leonard
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Leonard
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Leonard
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Neal Leonard
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Leonard
Sibling · 1930 · age 13
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
1930 US Federal Census — Oakland, Michigan
Open full size
1930 US Federal Census — Oakland, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1017:0193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilber Hitchcock | 17 | roomer | — | Michigan |
| 2 | Ray Denison | 47 | Head | Manager | Michigan |
| 3 | Grace Denison | 43 | Wife-H | Manager | Michigan |
| 4 | Patricia Denison | 6 | daughter | None | Michigan |
| 5 | Ora Hemmingway | 67 | Head | None | Michigan |
| 6 | Clara L. Hemmingway | 42 | son | None | Michigan |
| 7 | Lottie E. Hemmingway | 30 | daughter | Carpenter | Michigan |
| 8 | George S. Mcdonald | 49 | Head | Clerk | Michigan |
| 9 | Emma Mcdonald | 45 | Wife-H | Carpenter | Michigan |
| 10 | Winifred Perrin | 32 | roomer | None | Michigan |
| 11 | Alvilda Ryan | 23 | roomer | Teacher | Michigan |
| 12 | George F. Close | 54 | Head | Teacher | Michigan |
| 13 | Maudy Close | 44 | Wife-H | Carpenter | Canada-English |
| 14 | Elmer H. Close | 16 | son | None | Michigan |
| 15 | Glen Howard | 41 | roomer | None | Michigan |
| 16 | Cornelius Leonard | 45 | Head | Assistant Merchant | Michigan |
| 17 | Ruth Leonard | 43 | Wife-H | Retail Merchant | Michigan |
| 18 | Charles Leonard | 20 | son | None | Michigan |
| 19 | Charlotte Leonard | 18 | daughter | Salesman | Michigan |
| 20 | Edna Leonard | 16 | daughter | Saleslady | Michigan |
| 21 | Jerry Leonard | 15 | son | None | Michigan |
| 22 | Jean Leonard | 13 | daughter | None | Michigan |
| 23 | Donald Leonard | 12 | son | None | Michigan |
| 24 | Neal Leonard | 10 | son | None | Michigan |
| 25 | Mary E. Leonard THIS PERSON | 7 | daughter | None | Michigan |
| 26 | Phillip Leonard | 5 | son | None | Michigan |
| 27 | John Leonard | 1 | son | None | Michigan |
| 28 | Clayton Sims | 24 | Head | None | Michigan |
| 29 | Lilah Sims | 24 | Wife-H | Marshall | Michigan |
| 30 | Frances Sims | 6 | daughter | None | Michigan |
| 31 | Ruth Sims | 5 | daughter | None | Michigan |
| 32 | Charles Sims | 3 | son | None | Michigan |
| 33 | Rollie Sims | 1 | son | None | Michigan |
| 34 | Robert Stanaback | 41 | Head | None | Michigan |
| 35 | Mattie Stanaback | 42 | Wife-H | Manager | Michigan |
| 36 | Juanita Stanaback | 14 | son | Saleslady | Michigan |
| 37 | Maxine Stanaback | 11 | daughter | None | Michigan |
| 38 | Baird Stanaback | 31 | Head | None | Michigan |
| 39 | Evelyn Stanaback | 28 | Wife-H | Stocker | Michigan |
| 40 | Roger E. Humphrey | 44 | Head | None | Ohio |
| 41 | Edith M. Humphrey | 39 | Wife-H | Retail Merchant | Michigan |
| 42 | Charles Humphrey | 15 | son | None | Michigan |
| 43 | Wm. B. Humphrey | 14 | son | None | Michigan |
| 44 | Clifford Humphrey | 11 | son | None | Michigan |
| 45 | Carlton Fuller | 22 | Head | None | Michigan |
| 46 | Merle Fuller | 20 | brother | Laborer | Michigan |
| 47 | Grant Axford | 63 | Head | None | Michigan |
| 48 | Mary E. Axford | 63 | Wife-H | Manager | Tennessee |
| 49 | Walter Bergman | 30 | Head | Laundress | Canada-English |
| 50 | Frances Bergman | 29 | Wife-H | Manager | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)