MH
Mary Hickey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Mary Hickey across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a daughter (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Hickey |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo City |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Occupation | Demonstrator |
| Industry | Wholesale Drug |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Demonstrator |
| Township / Ward | Toledo City |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Mary Hickey | Daughter | — | 24 | ~1916 |
| Joseph Hickey | Head | — | 56 | ~1884 |
| Bernard Hickey | Son | — | 16 | ~1924 |
| Donald Hickey | Son | — | 19 | ~1921 |
| Gene Hickey | Son | — | 8 | ~1932 |
| Bessie Hickey | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Lucas, Ohio
Daughter, age 4
Lucas, Ohio · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickey |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Daughter, age 15
Lucas, Ohio · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickey |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Daughter, age 24
Lucas-County, Ohio · implied b. ~1916 — 6 household members
| Surname | Hickey |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo City |
| 1935 Residence (County) | Lucas |
| Occupation | Demonstrator |
| Industry | Wholesale Drug |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Mary Hickey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Hickey (~0.92 confidence) and father Joseph Hickey (~0.92 confidence) and father Ralph Hickey (~0.92 confidence) and mother Bessie Hickey (~0.92 confidence) and mother Bessie Hickey (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Hickey
b. ~1854
Source father
● Household
· direct · ~0.92
Father
Joseph Hickey
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Ralph Hickey
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Bessie Hickey
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Bessie Hickey
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hickey
Daughter · 1940 · age 24 · b. ~1916 · Ohio
★ You are viewing this record
Sibling
Bernard Hickey
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Hickey
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Hickey
Sibling · 1940 · age 19
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03264-00226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lulu M Turner | 42 | Wife | Teacher | Ohio |
| 42 | Ruth A Turner | 16 | Daughter | — | Ohio |
| 43 | Joseph O Hickey | 56 | Head | Painter | Kentucky |
| 44 | Bessie M Hickey | 45 | Wife | — | Ohio |
| 45 | Mary Jane Hickey THIS PERSON | 24 | Daughter | Demonstrator | Ohio |
| 46 | Donald T Hickey | 19 | Son | Sweeper | Ohio |
| 47 | Bernard A Hickey | 16 | Son | — | Ohio |
| 48 | Gene N Hickey | 8 | Son | — | Ohio |
| 49 | Elio Costello | 70 | Head | — | Ohio |
| 50 | Anna M Costello | 68 | Wife | — | Germany |
| 51 | Clayton M Costello | 44 | Son | Grinder | Ohio |
| 52 | Margaret Costello | 21 | Daughter | — | Ohio |
| 53 | Willard H Biggs | 52 | Head | Salesman | Ohio |
| 54 | Elsie A Biggs | 52 | Wife | — | Ohio |
| 55 | Willard H Biggs | 23 | Son | Asst Foreman | Ohio |
| 56 | Herbert C Biggs | 20 | Son | Jr Auditor | Ohio |
| 57 | Ruth A Biggs | 11 | Daughter | — | Ohio |
| 58 | Carl H Rinker | 49 | Head | Broker | Ohio |
| 59 | Nelle M Rinker | 49 | Wife | — | Ohio |
| 60 | John C Rinker | 21 | Son | — | Ohio |
| 61 | Jean M Rinker | 19 | Daughter | — | Ohio |
| 62 | Gustav F Kerr | 61 | Head | Foreman | Ohio |
| 63 | Frieda M Kerr | 61 | Wife | — | Ohio |
| 64 | Charles N Kerr | 27 | Son | Machinist | Ohio |
| 65 | Robert H Kerr | 20 | Son | Clerk | Ohio |
| 66 | Clarence E Wills | 54 | Head | — | Kentucky |
| 67 | Ruth Wills | 49 | Wife | — | Ohio |
| 68 | Lucianna M Sheeler | 69 | Boarder | — | Michigan |
| 69 | Florence A Stackhouse | 55 | Head | — | Ohio |
| 70 | Nora G Johnson | 71 | Daughter | — | Ohio |
| 71 | Merle A Johnson | 35 | Granddaughter | — | Ohio |
| 72 | Jo-Ann Johnson | 3 | Gd Daughter | — | Ohio |
| 73 | Henry H Greene | 26 | Head | Taxi-Driver | Ohio |
| 74 | Mary M Greene | 28 | Wife | — | Ohio |
| 75 | Henry N Greene | 3 | Son | — | Ohio |
| 76 | Myrtle Birdwood | 57 | Head | — | Illinois |
| 77 | Herbert R Hutchinson | 49 | Head | Core Maker | Ohio |
| 78 | Anna M Hutchinson | 49 | Wife | — | Ohio |
| 79 | Max A Hutchinson | 11 | Son | — | Ohio |
| 80 | Robert Donovan | 27 | Head | Manager | Ohio |
Pedigree Summary
Mary + 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 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)