MV
Mary Valentine — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Valentine across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 0
b. ~1930
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Valentine |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Cook County |
| Est. Birth Year | ~1930 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Valentine | Son | — | 12 | ~1918 |
| Mary Valentine | Daughter | — | ~1930 | |
| Floyd Valentine | Son | — | 8 | ~1922 |
| Howard Valentine | Son | — | 14 | ~1916 |
| Lawrence Valentine | Son | — | 19 | ~1911 |
| Emanuel Valentine | Head | — | 42 | ~1888 |
| Hazel Valentine | Daughter | — | 5 | ~1925 |
| Amanda Valentine | Spouse | — | 40 | ~1890 |
| Emanuel Valentine | Son | — | 2 | ~1928 |
Census Appearances
1930
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1930 — 9 household members
| Surname | Valentine |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 9
Cook-County, Illinois · implied b. ~1931 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Valenti |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | No 3 |
| 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 Valentine across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Valentine
Daughter · 1930 · age 0 · b. ~1930 · Illinois
★ You are viewing this record
Sibling
Hazel Valentine
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emanuel Valentine
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Valentine
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Valentine
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Valentine
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Valentine
Sibling · 1930 · age 12
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel566:0337)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isaac Sloan | 42 | Head | Laborer | Italy |
| 2 | Jennie Sloan | 39 | Wife | — | Italy |
| 3 | Augustine Sloan | 15 | Son | — | Michigan |
| 4 | Theodore Sloan | 13 | Son | — | Michigan |
| 5 | Helen Sloan | 9 | Daughter | — | Michigan |
| 6 | Theresa Sloan | 7 | Daughter | — | Michigan |
| 7 | Paul Sloan | 5 | Son | — | Michigan |
| 8 | Annie Sloan | 3 | Daughter | — | Michigan |
| 9 | John Sloan | 1 | Son | — | Michigan |
| 10 | Irvin Hollister | 26 | Head | Laborer | Missouri |
| 11 | Bernice L. Hollister | 21 | Wife | — | Indiana |
| 12 | Ralph A. Hollister | 1 | Son | — | Michigan |
| 13 | Walter W. Bragg | 22 | Head | Laborer | Illinois |
| 14 | Agnes Bragg | 20 | Wife | — | Illinois |
| 15 | Charles Bragg | 1 | Son | — | Michigan |
| 16 | Arthur Nelson | 27 | Head | Foreman | Denmark |
| 17 | Mildred Nelson | 25 | Wife | — | Norway |
| 18 | Arthur Moser | 45 | Head | Packer | Pennsylvania |
| 19 | Flora Moser | 40 | Wife | — | Illinois |
| 20 | Arthur Moser | 20 | Son | Laborer | Illinois |
| 21 | James Moser | 18 | Son | — | Illinois |
| 22 | Bernice Moser | 15 | Daughter | — | Illinois |
| 23 | May E. Moser | 13 | Daughter | — | Illinois |
| 24 | Hazel Moser | 10 | Daughter | — | Illinois |
| 25 | Florence Moser | 8 | Daughter | — | Illinois |
| 26 | Edgar Moser | 6 | Son | — | Illinois |
| 27 | Walter Moser | 5 | Son | — | Illinois |
| 28 | Doris Moser | 2 | Daughter | — | Illinois |
| 29 | Byron H. Dozelle | 21 | Head | Cutter | Wisconsin |
| 30 | Eva Dozelle | 20 | Wife | — | New York |
| 31 | Byron Dozelle | 0 | Son | — | Michigan |
| 32 | Emanuel Valentine | 42 | Head | Laborer | Illinois |
| 33 | Amanda Valentine | 40 | Wife | — | Illinois |
| 34 | Lawrence Valentine | 19 | Son | Laborer | Illinois |
| 35 | Howard Valentine | 14 | Son | — | Illinois |
| 36 | George Valentine | 12 | Son | — | Illinois |
| 37 | Floyd Valentine | 8 | Son | — | Illinois |
| 38 | Hazel Valentine | 5 | Daughter | — | Illinois |
| 39 | Emanuel Valentine | 2 | Son | — | Illinois |
| 40 | Mary Valentine THIS PERSON | 0 | Daughter | — | Illinois |
| 41 | Edward Wilson | 41 | Head | Foreman | England |
| 42 | Nora Wilson | 39 | Wife | — | Iowa |
| 43 | Edward Wilson | 17 | Son | — | Iowa |
| 44 | Vincent H. Wilson | 13 | Son | — | Iowa |
| 45 | Robert Wilson | 7 | Son | — | Virginia |
| 46 | Louis Parting | 51 | Head | Splicer | Ohio |
| 47 | Ada Parting | 51 | Wife | — | Arkansas |
| 48 | Russell Parting | 14 | Son | — | Illinois |
| 49 | Louis J. Parting | 4 | Son | — | Illinois |
| 50 | Conrad Zelger | 58 | Lodger | Laborer | England |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)