MS
Mary Sloan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Christian-County, Illinois
Our Model Tree links this Mary Sloan across the 1930 and 1940 US Censuses in Christian-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Christian-County, Illinois |
| Surname | Sloan |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Bucks Township |
| 1935 Residence (County) | Christian |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Bucks Township |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Martha Sloan | Daughter | — | 9 | ~1931 |
| Mary Sloan | Daughter | — | 20 | ~1920 |
| Rose Sloan | Daughter | — | 10 | ~1930 |
| Bernadine Sloan | Daughter | — | 17 | ~1923 |
| Billy Sloan | Son | — | 15 | ~1925 |
| George Sloan | Head | — | 59 | ~1881 |
| Jackie Sloan | Son | — | 7 | ~1933 |
| Reta Sloan | Daughter | — | 11 | ~1929 |
| Mary Sloan | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Christian, Illinois
Daughter, age 10
Christian, Illinois · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sloan |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Christian-County, Illinois
Daughter, age 20
Christian-County, Illinois · implied b. ~1920 — 9 household members
| Surname | Sloan |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Bucks Township |
| 1935 Residence (County) | Christian |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sloan
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Rose Sloan
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Reta Sloan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billy Sloan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Sloan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Sloan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jackie Sloan
Sibling · 1940 · age 7
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 — Christian-County, Illinois
Open full size
1940 US Federal Census — Christian-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00767-00597)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward S Clavin | 53 | Head | Farmer | Illinois |
| 2 | Mary Clavin | 45 | Wife | House Work | Illinois |
| 3 | Joseph Clavin | 21 | Son | Farmer | Illinois |
| 4 | Charles Clavin | 18 | Son | Farmer | Illinois |
| 5 | Mary Clavin | 16 | Daughter | Housework | Illinois |
| 6 | Agnes Clavin | 13 | Daughter | — | Illinois |
| 7 | Lawrence Clavin | 11 | Son | — | Illinois |
| 8 | Thomas Clavin | 9 | Son | — | Illinois |
| 9 | Helen Clavin | 8 | Daughter | — | Illinois |
| 10 | Ralph Clavin | 3 | Son | — | Illinois |
| 11 | Rita Clavin | 0 | Daughter | — | Illinois |
| 12 | Joe G Brokamp | 55 | Head | Farmer | Illinois |
| 13 | Christina Brokamp | 49 | Wife | House Work | Illinois |
| 14 | Harold Brokamp | 23 | Son | Salesman | Illinois |
| 15 | Leo Brokamp | 20 | Son | Farmer | Illinois |
| 16 | Edward Brokamp | 15 | Son | — | Illinois |
| 17 | Extra Line Brokamp | 9 | Son | — | Illinois |
| 18 | Arthur G Beller | 43 | Head | Farmer | Illinois |
| 19 | Lizzie Beller | 31 | Wife | House Work | Illinois |
| 20 | Irene Beller | 15 | Daughter | — | Illinois |
| 21 | Merle Beller | 10 | Son | — | Illinois |
| 22 | Wanda Beller | 8 | Daughter | — | Illinois |
| 23 | Anita Beller | 4 | Daughter | — | Illinois |
| 24 | Lizzie Redman | 77 | Aunt | — | Illinois |
| 25 | Howard Wahl | 46 | Head | Farmer | Missouri |
| 26 | Hilda Wahl | 42 | Wife | House Work | Illinois |
| 27 | Everett Wahl | 23 | Son | Farmer | Illinois |
| 28 | Melvin Wahl | 6 | Son | — | Illinois |
| 29 | Warren G Beller | 19 | Head | Labor | Illinois |
| 30 | Lavene Beller | 15 | Wife | Housework | Illinois |
| 31 | Mary Irene Beller | 0 | Daughter | — | Illinois |
| 32 | George G Sloan | 59 | Head | Farmer | Illinois |
| 33 | Mary Sloan | 47 | Wife | House Work | Illinois |
| 34 | Mary C Sloan THIS PERSON | 20 | Daughter | — | Illinois |
| 35 | Bernadine Sloan | 17 | Daughter | House Work | Illinois |
| 36 | Billy Sloan | 15 | Son | — | Illinois |
| 37 | Reta May Sloan | 11 | Daughter | — | Illinois |
| 38 | Rose Anne Sloan | 10 | Daughter | — | Illinois |
| 39 | Martha Jean Sloan | 9 | Daughter | — | Illinois |
| 40 | Jackie Sloan | 7 | Son | — | Illinois |
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)