MV
Mary Valentine — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this Mary Valentine across the 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Female
Daughter
Born: Arkansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Valentine |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Caseyville |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | East St Louis |
| Est. Birth Year | ~1928 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Doris Valentine | Daughter | — | 15 | ~1925 |
| Burt Valentine | Head | — | 44 | ~1896 |
| Mary Valentine | Daughter | — | 12 | ~1928 |
| Margaret Valentine | Spouse | — | 42 | ~1898 |
| Lewis Valentine | Son | — | 19 | ~1921 |
| Onella Valentine | Daughter | — | 17 | ~1923 |
| Margaret Valentine | Daughter | — | 5 | ~1935 |
| Herbert Valentine | Son | — | 24 | ~1916 |
Census Appearances
1930
None, Missouri
Daughter, age 2
None, Missouri · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Valentine |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
St.-Clair-County, Illinois
Daughter, age 12
St.-Clair-County, Illinois · implied b. ~1928 — 8 household members
| Surname | Valentine |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Caseyville |
| 1935 Residence (County) | St. Clair |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Illinois |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 Valentine across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Valentine
Daughter · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Margaret Valentine
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Valentine
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lewis Valentine
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Onella Valentine
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Valentine
Sibling · 1940 · age 15
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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00879-00220)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Christopher Stacy | 47 | Head | Clerk | Illinois |
| 42 | Josephine Stacy | 47 | Wife | — | Illinois |
| 43 | Omer T. Stacy | 19 | Son | Messenger Boy | Illinois |
| 44 | Etta Maria Stacy | 11 | Daughter | — | Illinois |
| 45 | John Buckley | 55 | Head | Water Tender | Illinois |
| 46 | Mary Buckley | 53 | Wife | — | Illinois |
| 47 | Goldie Buckley | 35 | Daughter | Office | Illinois |
| 48 | Mary Buckley | 20 | Daughter | House Work | Illinois |
| 49 | Herbert Buckley | 17 | Son | — | Illinois |
| 50 | Christena Buckley | 15 | Daughter | — | Illinois |
| 51 | Alleine Buckley | 11 | Daughter | — | Illinois |
| 52 | John W. Buckley | 23 | Head | Machine Operator | Illinois |
| 53 | Theda Buckley | 22 | Wife | — | Tennessee |
| 54 | Barbara Buckley | 4 | Daughter | — | Illinois |
| 55 | J. B. Haden | 33 | Head | Stove Mounting | Kentucky |
| 56 | Elizabeth Haden | 31 | Wife | — | Kentucky |
| 57 | Charles Haden | 14 | Son | — | Kentucky |
| 58 | Eugene Haden | 10 | Son | — | Kentucky |
| 59 | Geneva Haden | 8 | Daughter | — | Kentucky |
| 60 | Betty Haden | 7 | Daughter | — | Kentucky |
| 61 | Norma Haden | 3 | Daughter | — | Illinois |
| 62 | Edward Haden | 0 | Son | — | Illinois |
| 63 | Alice Morrison | 45 | Head | — | Illinois |
| 64 | Paul C. Ward | 29 | Husband | Taxi Chauffeur | Indiana |
| 65 | Velma Ward | 26 | Wife | — | Illinois |
| 66 | Anthony Wenzel | 29 | Head | Truck Driver | Illinois |
| 67 | Victoria Wenzel | 26 | Wife | — | Illinois |
| 68 | Victoria Wenzel | 2 | Daughter | — | Illinois |
| 69 | Burt Valentine | 44 | Head | Section Gang | Arkansas |
| 70 | Margaret Valentine | 42 | Wife | — | Oklahoma |
| 71 | Herbert Valentine | 24 | Son | Laborer | Arkansas |
| 72 | Lewis Valentine | 19 | Son | Laborer | Arkansas |
| 73 | Onella Valentine | 17 | Daughter | New Worker | Arkansas |
| 74 | Doris Valentine | 15 | Daughter | — | Arkansas |
| 75 | Mary Jane Valentine THIS PERSON | 12 | Daughter | — | Arkansas |
| 76 | Margaret June Valentine | 5 | Daughter | — | Illinois |
| 77 | Robert Chase | 29 | Head | Cribber Laborer | Illinois |
| 78 | Bernice Chase | 22 | Wife | — | Illinois |
| 79 | Bernard R. Chase | 4 | Son | — | Illinois |
| 80 | Charlotte May Chase | 1 | Daughter | — | 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)