MJ
Mary Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Mary Jackson across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed), with identified parents Cornelius & Edna — first a daughter (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland city |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Occupation | Typist |
| Industry | Cont. & 3rd Dist. Dispensary |
| Class of Worker | GW |
| Hours Worked | 50 |
| Income (1939) | 1020 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Typist |
| Township / Ward | Cleveland City |
| Est. Birth Year | ~1909 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Jackson | Daughter | — | 31 | ~1909 |
| Juanita Henrietta | Daughter | — | 49 | ~1891 |
| Ann Jackson | Daughter | — | 12 | ~1928 |
| Edna Jackson | Head | — | 64 | ~1876 |
| Clarence Henrietta | Other | — | 17 | ~1923 |
Census Appearances
1920
Cuyahoga, Ohio
Daughter, age 9
Cuyahoga, Ohio · implied b. ~1911 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Daughter, age 20
Cuyahoga, Ohio · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Daughter, age 31
Cuyahoga-County, Ohio · implied b. ~1909 — 5 household members
| Surname | Jackson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland city |
| 1935 Residence (County) | Cuyahoga |
| Occupation | Typist |
| Industry | Cont. & 3rd Dist. Dispensary |
| Class of Worker | GW |
| Hours Worked | 50 |
| Income (1939) | 1020 |
| Highest Grade | Hs 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 Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Cornelius Barnes (~0.92 confidence) and mother Edna Jackson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cornelius Barnes
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Edna Jackson
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Jackson
Daughter · 1940 · age 31 · b. ~1909 · Ohio
★ You are viewing this record
Sibling
Ann Jackson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Henrietta
Sibling · 1940 · age 49
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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03221-00405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Luciele Hayden | 59 | Lodger | — | Maryland |
| 2 | Annie Davis | 50 | Lodger | — | Georgia |
| 3 | William Davis | 16 | Son | — | Ohio |
| 4 | Mickey Bertrand | 25 | Lodger | Salesman | Ohio |
| 5 | Harry W Barry | 44 | Head | Asst. Superintendent | Ohio |
| 6 | Lillian E Barry | 40 | Wife | — | Kentucky |
| 7 | Alvin Perrault | 31 | Head | Manager | Mississippi |
| 8 | Thelma Perrault | 29 | Wife | — | Canada |
| 9 | Alvin Jr. Perrault | 8 | Son | — | Ohio |
| 10 | Elaine Perrault | 6 | Daughter | — | Ohio |
| 11 | Royal Scott Mosley | 32 | Head | Typist | Texas |
| 12 | Myrtle Robinson | 30 | Sister | Cook | Texas |
| 13 | Elliott Dorsey | 44 | Head | County Treas. | Ohio |
| 14 | Ada Dorsey | 40 | Wife | — | Kentucky |
| 15 | Edna E Jackson | 64 | Head | — | Ohio |
| 16 | Mary Jackson THIS PERSON | 31 | Daughter | Typist | Ohio |
| 17 | Ann Louise Jackson | 12 | Daughter | — | Ohio |
| 18 | Juanita Henrietta | 49 | Daughter | Secretary | Ohio |
| 19 | Clarence Henrietta | 17 | Grandson | — | Ohio |
| 20 | Sarah E Thomas | 70 | Head | — | Tennessee |
| 21 | Thomas Thomas | 75 | Brother | — | Tennessee |
| 22 | Lloyd Thomas | 40 | Brother | Mechanic | Tennessee |
| 23 | Casper Lewis | 40 | Head | Porter | Georgia |
| 24 | Ruth Lewis | 40 | Wife | — | Georgia |
| 25 | Charles Hamilton | 45 | Lodger | Laborer | Georgia |
| 26 | Elmer Barns | 44 | Head | Laborer | Georgia |
| 27 | Rosa Barns | 40 | Wife | — | Georgia |
| 28 | Eugene Barns | 21 | Son | Porter | Georgia |
| 29 | Zelma Barns | 18 | Son | — | Georgia |
| 30 | Hattie Burnell | 49 | Lodger | Maid | Louisiana |
| 31 | Marie Tealsdale | 35 | Head | Chauffer | Georgia |
| 32 | Rocky Tealsdale | 35 | Wife | Maid | Georgia |
| 33 | Wesley Walker | 46 | Head | Maintenance | S. Carolina |
| 34 | Emma Walker | 44 | Wife | — | Georgia |
| 35 | Harold Walker | 23 | Son | Singer | Ohio |
| 36 | Edward Maxwell | 35 | Lodger | Janitor | N. Carolina |
| 37 | Lavonia Maxwell | 34 | Lodger-Wife | — | Ohio |
| 38 | Elvis Yant | 32 | Lodger | Porter | Texas |
| 39 | Makrila La Flora | 58 | Head | — | Mississippi |
| 40 | Solomon La Flora | 34 | Son | Laborer | Mississippi |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 2 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)