MH
Mary Hickey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allen-County, Ohio
Our Model Tree links this Mary Hickey across the 1920, 1930 and 1940 US Censuses in Allen-County, Ohio (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1911), then head of a 2-person household.
Age 29
b. ~1911
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Ohio |
| Surname | Hickey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lima City |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Retail Ice & Coal Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 612 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Bookkeeper |
| Township / Ward | Lima City |
| Est. Birth Year | ~1911 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Hickey | Daughter | — | 29 | ~1911 |
| Anna Hickey | Head | — | 64 | ~1876 |
Census Appearances
1920
Allen, Ohio
Daughter, age 8
Allen, Ohio · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Allen, Ohio
Daughter, age 19
Allen, Ohio · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hickey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Occupation | Pipe Worker |
| Industry | Pipe Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Allen-County, Ohio
Daughter, age 29
Allen-County, Ohio · implied b. ~1911 — 2 household members
| Surname | Hickey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lima City |
| 1935 Residence (County) | Allen |
| Occupation | Bookkeeper |
| Industry | Retail Ice & Coal Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 612 |
| 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 James Hickey (~0.92 confidence) and father James Hickey (~0.92 confidence) and mother Anna Hickey (~0.92 confidence) and mother Anna Hickey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Hickey
b. ~1870
Source father
● Household
· direct · ~0.92
Father
James Hickey
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Anna Hickey
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Anna Hickey
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hickey
Daughter · 1940 · age 29 · b. ~1911 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allen-County, Ohio
Open full size
1940 US Federal Census — Allen-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03020-00499)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph M. Barnett | 61 | Head | Circulation Man | Ohio |
| 2 | Sylvia Barnett | 58 | Wife | — | Ohio |
| 3 | Joseph R. Barnett | 19 | Son | New Worker | Ohio |
| 4 | Dennis Ayers | 26 | Head | Operator | Ohio |
| 5 | Sarah Ayers | 28 | Wife | — | Ohio |
| 6 | David Cottrell | 14 | Step-son | — | Ohio |
| 7 | Buddy Cottrell | 13 | Step-son | — | Ohio |
| 8 | Lena Ziegenbush | 71 | Head | — | Ohio |
| 9 | Louise Ziegenbush | 34 | Daughter | Delivery Clerk | Ohio |
| 10 | John Schaublin | 58 | Head | Mill Man | Ohio |
| 11 | Emma Schaublin | 55 | Wife | — | Germany |
| 12 | Homer Evers | 41 | Head | Laborer | Ohio |
| 13 | Margery Evers | 39 | Wife | — | Ohio |
| 14 | Edna Marie Evers | 10 | Daughter | — | Ohio |
| 15 | John Evers | 70 | Father | — | Ohio |
| 16 | Frances Romaker | 15 | Niece | — | Ohio |
| 17 | Roy Gierhart | 41 | Head | Assembler | Ohio |
| 18 | Lillian E. Gierhart | 42 | Wife | — | Ohio |
| 19 | Dorothy Gierhart | 16 | Daughter | — | Ohio |
| 20 | Robert M. Stonehill | 41 | Head | Tube Bender | Ohio |
| 21 | Alice A. Stonehill | 40 | Wife | Shoe Clerk | Ohio |
| 22 | Sylvia H. Stonehill | 21 | Daughter | — | Ohio |
| 23 | Belle Rike | 73 | Head | — | Ohio |
| 24 | Otto J. Rike | 21 | Son | Attendant | Ohio |
| 25 | Della Levins | 62 | Sister | — | Ohio |
| 26 | George W. Linpach | 54 | Head | Conductor | Ohio |
| 27 | Anna Hickey | 64 | Head | — | Indiana |
| 28 | Mary Hickey THIS PERSON | 29 | Daughter | Bookkeeper | Ohio |
| 29 | Fred Kortier | 71 | Head | — | Ohio |
| 30 | Frances Kortier | 70 | Wife | — | Ohio |
| 31 | Harold Reck | 29 | Head | Pressman | Ohio |
| 32 | Helene Reck | 26 | Wife | — | Ohio |
| 33 | Patricia Reck | 4 | Daughter | — | Ohio |
| 34 | Mildred Plummer | 21 | Sister-in-law | — | Ohio |
| 35 | William B. Haspel | 52 | Head | Machinist Helper | Ohio |
| 36 | Jane A. Haspel | 45 | Wife | — | Ohio |
| 37 | Rosella Haspel | 21 | Daughter | Trained Nurse | Ohio |
| 38 | Ruth Killian | 25 | Daughter | — | Ohio |
| 39 | Perry Killian | 24 | Son-in-law | Assembler | Ohio |
| 40 | Jesse Harmon | 56 | Head | Barber | Ohio |
Pedigree Summary
Mary
Gen 1 · 4 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)