ML
Margaret Leonard — 1930 US Census Record
Model Tree available1930 United States Federal Census · Hamilton, Ohio
Our Model Tree links this Margaret Leonard across the 1910, 1920 and 1930 US Censuses in Hamilton, Ohio (XGBoost, ~Confirmed), with identified parents James & M — first a daughter (b.~1898), then head of a 5-person household.
Age 32
b. ~1898
Female
Daughter
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hamilton, Ohio |
| Surname | Leonard |
| Given Name | Margaret M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Clerk |
| Industry | Cotton gds |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Clerk |
| Township / Ward | Cincinnati City |
| Est. Birth Year | ~1898 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Nellie Leonard | Daughter | — | 41 | ~1889 |
| Harry Leonard | Son | — | 35 | ~1895 |
| Michel Leonard | Head | — | 74 | ~1856 |
| Lauretta Leonard | Daughter | — | 42 | ~1888 |
| Margaret Leonard | Daughter | — | 32 | ~1898 |
Census Appearances
1910
Hamilton, Ohio
Daughter, age 13
Hamilton, Ohio · implied b. ~1897 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Hamilton, Ohio
Daughter, age 22
Hamilton, Ohio · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Bookkeeper |
| Industry | Tea Company |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Daughter, age 32
Hamilton, Ohio · implied b. ~1898 — 5 household members
| Surname | Leonard |
| Given Name | Margaret M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Clerk |
| Industry | Cotton gds |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Margaret Leonard across 3 US Census years (1910, 1920 and 1930) in Hamilton, Ohio, using XGBoost record linkage. Identified parents: father James Leonard (~0.92 confidence) and father M Leonard (~0.92 confidence) and father Michel Leonard (~0.92 confidence) and mother Ella Leonard (~0.92 confidence) and mother Francis Leonard (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Leonard
b. ~1867
Source father
● Household
· direct · ~0.92
Father
M Leonard
b. ~1856
Source father
● Household
· direct · ~0.92
Father
Michel Leonard
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Ella Leonard
b. ~1859
Source mother
● Household
· direct · ~0.92
Mother
Francis Leonard
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Leonard
Daughter · 1930 · age 32 · b. ~1898 · Ohio
★ You are viewing this record
Sibling
Lauretta Leonard
Sibling · 1930 · age 42
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Leonard
Sibling · 1930 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Leonard
Sibling · 1930 · age 41
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 — Hamilton, Ohio
Open full size
1930 US Federal Census — Hamilton, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1816:0234)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ralph E Hawthorne | 39 | Head | Commercial Traveler | Illinois |
| 2 | Carolyn Hawthorne | 39 | Wife | — | Pennsylvania |
| 3 | Rae Hawthorne | 13 | Daughter | — | Ohio |
| 4 | Dorothy Hawthorne | 10 | Daughter | — | Ohio |
| 5 | Alma Clarke | 37 | Servant | Servant | Ohio |
| 6 | Charles H Smith | 38 | Head | Elec. Research | Ohio |
| 7 | Mary E Smith | 39 | Wife | — | Ohio |
| 8 | Dwight Mupp | 22 | Boarder | Elec. Research | Ohio |
| 9 | William R Richey | 46 | Head | Broker | Illinois |
| 10 | Josephine M Richey | 45 | Wife | — | Ohio |
| 11 | Gayle Richey | 21 | Daughter | Steno. | Ohio |
| 12 | Nellie Wagner | 68 | Head | — | Ohio |
| 13 | Ruth Wagner | 29 | Daughter | Operator | Ohio |
| 14 | Esther Kern | 32 | Wife | Operator | Ohio |
| 15 | Irwin Kern | 11 | Son | — | Ohio |
| 16 | Harry Brummer | 31 | Head | Retail Merchant | Ohio |
| 17 | Luella Brummer | 34 | Wife | — | Ohio |
| 18 | Lee Brummer | 0 | Son | — | Ohio |
| 19 | Charles Schmitt | 55 | Head | Owner | Ohio |
| 20 | Minnie Schmitt | 55 | Wife | — | Ohio |
| 21 | Edward H Schmitt | 28 | Son | Agent | Ohio |
| 22 | Margaret C Schmitt | 26 | Daughter | Steno. | Ohio |
| 23 | Anthony B Schmitt | 19 | Son | — | Ohio |
| 24 | Nettye M Schmitt | 17 | Daughter | — | Ohio |
| 25 | Alma B Weber | 46 | Sister | Teacher | Ohio |
| 26 | Edward R Dieckmann | 49 | Head | Taylor | Ohio |
| 27 | Alice L Dieckmann | 47 | Wife | — | Ohio |
| 28 | Rosella E Dieckmann | 25 | Daughter | Operator | Ohio |
| 29 | Robert H Dieckmann | 23 | Son | Taylor | Ohio |
| 30 | Henry E Dieckmann | 21 | Son | Pressman | Ohio |
| 31 | Alice C Dieckmann | 19 | Daughter | — | Ohio |
| 32 | Irene B Dieckmann | 16 | Daughter | — | Ohio |
| 33 | Edward R Dieckmann | 11 | Son | — | Ohio |
| 34 | Bertha Paria | 48 | Head | — | Ohio |
| 35 | Helen Paria | 44 | Sister | — | Ohio |
| 36 | Oliver T Payton | 44 | Head | Broker | Kentucky |
| 37 | Alma F Payton | 40 | Wife | Salesman | Ohio |
| 38 | June B Payton | 13 | Daughter | — | Ohio |
| 39 | Godfrey B Weber | 53 | Head | Cashier | Ohio |
| 40 | Minnie H Weber | 52 | Wife | — | Ohio |
| 41 | Andrew H Weber | 28 | Son | Stockkeeper | Ohio |
| 42 | Marie E Weber | 26 | Daughter | Teller | Ohio |
| 43 | Alice P Weber | 24 | Daughter | Bookkeeper | Ohio |
| 44 | Louis A Weber | 19 | Son | — | Ohio |
| 45 | Michel W Leonard | 74 | Head | Contractor | Ohio |
| 46 | Lauretta A Leonard | 42 | Daughter | Bookkeeper | Ohio |
| 47 | Nellie M Leonard | 41 | Daughter | — | Ohio |
| 48 | Harry J Leonard | 35 | Son | Clerk | Ohio |
| 49 | Margaret M Leonard THIS PERSON | 32 | Daughter | Clerk | Ohio |
| 50 | Bernice Thiemann | 60 | Head | — | Ohio |
Pedigree Summary
Margaret + 3 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)