MC
Mary Cross — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Cross across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Cross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | New Worker |
| Hours Worked | 22 |
| Income (1939) | 0 |
| Highest Grade | No C-2 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | New Worker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1920 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Annie Cross | Daughter | — | 3 | ~1937 |
| Williard Cross | Son | — | 15 | ~1925 |
| Leroy Cross | Son | — | 14 | ~1926 |
| Mary Cross | Daughter | — | 20 | ~1920 |
| Franklin Cross | Son | — | 5 | ~1935 |
| Augusta Cross | Spouse | — | 46 | ~1894 |
| Augustine Cross | Daughter | — | 7 | ~1933 |
| Charlie Cross | Head | — | 48 | ~1892 |
| Lewis Cross | Son | — | 11 | ~1929 |
| Harvey Cross | Son | — | 10 | ~1930 |
Census Appearances
1930
Cook, Illinois
Daughter, age 10
Cook, Illinois · implied b. ~1920 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cross |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Cook-County, Illinois
Daughter, age 20
Cook-County, Illinois · implied b. ~1920 — 10 household members
| Surname | Cross |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | New Worker |
| Hours Worked | 22 |
| Income (1939) | 0 |
| Highest Grade | No C-2 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Cross across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cross
Daughter · 1940 · age 20 · b. ~1920 · Illinois
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Sibling
Williard Cross
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harvey Cross
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lewis Cross
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Augustine Cross
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Cross
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Cross
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Cross
Sibling · 1940 · age 3
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00925-00115)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bell Bruce Bradley | 17 | Daughter | — | Illinois |
| 2 | Irene Bradley | 16 | Daughter | — | Illinois |
| 3 | Paris Bradley | 14 | Daughter | — | Illinois |
| 4 | Betty Jane Bradley | 8 | Daughter | — | Illinois |
| 5 | Brytena Bradley | 6 | Daughter | — | Illinois |
| 6 | Willard Vaughn | 50 | Head | — | Alabama |
| 7 | Lela Beatrice Vaughn | 50 | Wife | — | Mississippi |
| 8 | Wise Amon Vaughn | 21 | Son | Wheeler | Mississippi |
| 9 | Jeraldine Vaughn | 16 | Daughter | — | Illinois |
| 10 | Evelyn Vaughn | 15 | Daughter | — | Illinois |
| 11 | Laverne Vaughn | 12 | Daughter | — | Illinois |
| 12 | Dorothy Banks | 19 | Daughter | New Worker | Illinois |
| 13 | Elaithier Banks | 1 | Granddaughter | — | Illinois |
| 14 | Fletcher Leslie | 45 | Head | Janitor Helper | Georgia |
| 15 | Fannie Leslie | 25 | Wife | — | Georgia |
| 16 | Crawford Stewart | 38 | Brother-in-law | Shoveler | Georgia |
| 17 | Crawford Jr. Stewart | 17 | Nephew | — | Illinois |
| 18 | Dolores Stewart | 10 | Niece | — | Illinois |
| 19 | Lannie Rivard | 34 | Head | Hall Guard | South Carolina |
| 20 | William Rivard | 19 | Son | Janitor | South Carolina |
| 21 | Annie Lee Rivard | 15 | Daughter | — | Illinois |
| 22 | Massie Anderson | 56 | Mother | — | South Carolina |
| 23 | Charlie Cross | 48 | Head | Waterman | Tennessee |
| 24 | Augusta Cross | 46 | Wife | — | Tennessee |
| 25 | Mary Cross THIS PERSON | 20 | Daughter | New Worker | Tennessee |
| 26 | Williard Cross | 15 | Son | — | Illinois |
| 27 | Leroy Cross | 14 | Son | — | Illinois |
| 28 | Lewis Cross | 11 | Son | — | Illinois |
| 29 | Harvey Cross | 10 | Son | — | Illinois |
| 30 | Augustine Cross | 7 | Daughter | — | Illinois |
| 31 | Franklin Cross | 5 | Son | — | Illinois |
| 32 | Annie Cross | 3 | Daughter | — | Illinois |
| 33 | Joseph Calloway | 78 | Head | — | Alabama |
| 34 | Annie Calloway | 47 | Wife | Maid | Georgia |
| 35 | Pearl Spraggs | 38 | Lodger | New Worker | Georgia |
| 36 | Mary Murphy | 23 | Lodger | Maid | Georgia |
| 37 | Delores Murphy | 8 | Daughter Lodger | — | Georgia |
| 38 | Julia Stark | 58 | Lodger | — | Georgia |
| 39 | Robert Stark | 9 | Lodger | — | Illinois |
| 40 | Maurice Kennedy | 7 | Grandson Lodger | — | Georgia |
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)