MH
Mary Hayes — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Mary Hayes across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Female
Head
Born: Alabama
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Alabama |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Occupation | Domestic |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 160 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Domestic |
| Township / Ward | Cleveland |
| Est. Birth Year | ~1897 |
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 |
|---|---|---|---|---|
| Elizabeth Hayes | Daughter | — | 22 | ~1918 |
| Barbara Hayes | Daughter | — | 12 | ~1928 |
| Mary Hayes | Head | — | 43 | ~1897 |
| Lloyd Hayes | Son | — | 17 | ~1923 |
| Laurence Hayes | Son | — | 21 | ~1919 |
Census Appearances
1920
Cuyahoga, Ohio
Spouse, age 24
Cuyahoga, Ohio · implied b. ~1896 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Cuyahoga, Ohio
Spouse, age 32
Cuyahoga, Ohio · implied b. ~1898 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 16 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Proprietress |
| Industry | Own Business |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Cuyahoga-County, Ohio
Head, age 43
Cuyahoga-County, Ohio · implied b. ~1897 — 5 household members
| Surname | Hayes |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Alabama |
| 1935 Residence (City) | Cleveland |
| 1935 Residence (County) | Cuyahoga |
| Occupation | Domestic |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 160 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Hayes across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hayes
Head · 1940 · age 43 · b. ~1897 · 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 — 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-t0627-03219-00585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Johnnie Mae Reeves | 20 | Daughter | — | Ohio |
| 42 | Stephen Nagy | 54 | Head | Laborer | Ohio |
| 43 | Rose Nagy | 55 | Wife | — | Germany |
| 44 | Joseph Nagy | 26 | Son | Laborer | Ohio |
| 45 | Adolphus Williamson | 56 | Head | Laborer | Georgia |
| 46 | Elizabeth Williamson | 54 | Wife | — | Georgia |
| 47 | Alzatha Williamson | 12 | Daughter | — | Georgia |
| 48 | Thessie Hammond | 43 | Head | — | Alabama |
| 49 | Bessie J. Hammond | 22 | Daughter | Domestic | N. Carolina |
| 50 | Richard Ware | 64 | Father | — | Alabama |
| 51 | Charles Blacknell | 53 | Lodger | Laborer | N. Carolina |
| 52 | George Mapson | 36 | Head | Laborer | Alabama |
| 53 | Minnie Mapson | 28 | Wife | — | Alabama |
| 54 | Ethel J. Mapson | 13 | Daughter | — | Alabama |
| 55 | Willie J. Mapson | 10 | Son | — | Ohio |
| 56 | David Mapson | 8 | Son | — | Alabama |
| 57 | Charbeta Mapson | 6 | Daughter | — | Alabama |
| 58 | Edward Mapson | 2 | Son | — | Ohio |
| 59 | Joseph Mapson | 0 | Son | — | Ohio |
| 60 | Annie Williams | 60 | Grandmother | — | Alabama |
| 61 | Calvin Austin | 58 | Head | Laborer | S. Carolina |
| 62 | Betsy Austin | 53 | Wife | — | S. Carolina |
| 63 | Mary Hayes THIS PERSON | 43 | Head | Domestic | Alabama |
| 64 | Elizabeth Hayes | 22 | Daughter | Maid | Ohio |
| 65 | Laurence Hayes | 21 | Son | New Worker | Ohio |
| 66 | Lloyd Hayes | 17 | Son | — | Ohio |
| 67 | Barbara Hayes | 12 | Daughter | — | S. Carolina |
| 68 | John Krause | 49 | Head | Contractor | Germany |
| 69 | Marie Krause | 47 | Wife | — | Germany |
| 70 | Gertrude Krause | 24 | Daughter | Comptometer | Ohio |
| 71 | Joseph Sullivan | 40 | Brother-in-law | — | Ohio |
| 72 | Martin Sullivan | 34 | Brother-in-law | — | Ohio |
| 73 | John Friedrich | 49 | Head | Molder | Ohio |
| 74 | Selma Friedrich | 53 | Wife | — | Germany |
| 75 | Anne Brady | 80 | Mother-in-law | — | Germany |
| 76 | Antonio Libino | 53 | Head | — | Italy |
| 77 | Libi Libino | 53 | Wife | — | Italy |
| 78 | Alex Nemeth | 51 | Head | Laborer | Hungary |
| 79 | Anna Nemeth | 46 | Wife | — | Ohio |
| 80 | Rosa Pipoly | 77 | Mother-in-law | — | Hungary |
Related Census Records
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)