MS
Mary Sloan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this Mary Sloan across the 1920, 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 5-person household.
Age 51
b. ~1889
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Sloan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Alton City |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 5 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Alton City |
| Est. Birth Year | ~1889 |
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 Sloan | Spouse | — | 51 | ~1889 |
| Hugh Sloan | Head | — | 48 | ~1892 |
| Elizabeth Sloan | Daughter | — | 17 | ~1923 |
| Mary Wood | Other | — | 73 | ~1867 |
| William Sloan | Son | — | 14 | ~1926 |
Census Appearances
1920
Madison, Illinois
Spouse, age 31
Madison, Illinois · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sloan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1911 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | scotland |
1930
Madison, Illinois
Spouse, age 42
Madison, Illinois · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sloan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1909 |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Madison-County, Illinois
Spouse, age 51
Madison-County, Illinois · implied b. ~1889 — 5 household members
| Surname | Sloan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Alton City |
| Naturalization Status | Naturalized |
| Highest Grade | No 5 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Sloan 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 Sloan
Spouse · 1940 · age 51 · b. ~1889 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Madison-County, Illinois
Open full size
1940 US Federal Census — Madison-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00848-00779)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jean Pichee | 5 | Daughter | — | Illinois |
| 42 | Robert Pichee | 2 | Son | — | Illinois |
| 43 | Rose Spurgeon | 70 | Mother-in-law | — | Illinois |
| 44 | Albert W. Holliday | 37 | Head | Saw Mill | Kansas |
| 45 | Nellie Holliday | 33 | Wife | — | Illinois |
| 46 | Hazel Holliday | 12 | Daughter | — | Missouri |
| 47 | Helene Holliday | 10 | Daughter | — | Illinois |
| 48 | Cordelia Holliday | 7 | Daughter | — | Illinois |
| 49 | Samuel Holliday | 5 | Son | — | Illinois |
| 50 | Edward Rayborn | 50 | Head | Own Shop | Missouri |
| 51 | Nora Rayborn | 44 | Wife | — | Illinois |
| 52 | Charles Rayborn | 12 | Son | — | Illinois |
| 53 | John Mcdaniel | 52 | Head | — | Illinois |
| 54 | Carrie Mcdaniel | 37 | Wife | — | Illinois |
| 55 | Betty Mcdaniel | 14 | Daughter | — | Illinois |
| 56 | John Mcdaniel | 6 | Son | — | Illinois |
| 57 | Virginia Mcdaniel | 5 | Daughter | — | Illinois |
| 58 | Kenneth Ruyle | 30 | Head | Own Bakery | Illinois |
| 59 | Mary Ruyle | 26 | Wife | Bakery | Illinois |
| 60 | Albert P. Haynes | 61 | Head | For Contractor | Illinois |
| 61 | Margaret Haynes | 60 | Wife | — | Illinois |
| 62 | Matthew Watkins | 48 | Head | Construction Co. | Illinois |
| 63 | Sarah Watkins | 46 | Wife | — | Illinois |
| 64 | George Watkins | 25 | Son | Insurance Co. | Illinois |
| 65 | Dorothy Watkins | 25 | Daughter | — | Illinois |
| 66 | Sarah P. Watkins | 18 | Daughter | — | Illinois |
| 67 | Matthew Watkins | 14 | Son | — | Illinois |
| 68 | Martha Watkins | 7 | Daughter | — | Illinois |
| 69 | Florence Vaughn | 48 | Head | — | Missouri |
| 70 | Frances Vaughn | 28 | Daughter | Military School | Illinois |
| 71 | Helen Vaughn | 24 | Daughter | — | Illinois |
| 72 | Vera Vaughn | 22 | Daughter | — | Illinois |
| 73 | Hugh Sloan | 48 | Head | Peoples Gas Co. | Scotland |
| 74 | Mary Sloan THIS PERSON | 51 | Wife | — | Scotland |
| 75 | Elizabeth Sloan | 17 | Daughter | Glass Works | Illinois |
| 76 | William Sloan | 14 | Son | — | Illinois |
| 77 | Mary Wood | 73 | Mother-in-law | — | Scotland |
| 78 | Nora Richards | 69 | Head | — | Illinois |
| 79 | Albert Richards | 42 | Son | Straw Board | Illinois |
| 80 | Robert Richards | 19 | Grandson | — | Illinois |
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)