MP
Mildred Peterson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mildred Peterson across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1912), then head of a 9-person household.
Age 18
b. ~1912
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Peterson |
| Given Name | Mildred A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1912 |
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 Mildred | Age | Birth yr |
|---|---|---|---|---|
| Robert Peterson | Son | — | 9 | ~1921 |
| Bertil Peterson | Son | — | 16 | ~1914 |
| Carl Peterson | Head | — | 56 | ~1874 |
| Alma Peterson | Spouse | — | 45 | ~1885 |
| Edith Peterson | Daughter | — | 20 | ~1910 |
| Frank Peterson | Son | — | 22 | ~1908 |
| Mildred Peterson | Daughter | — | 18 | ~1912 |
| Elsa Peterson | Daughter | — | 13 | ~1917 |
| Carl Peterson | Son | — | 23 | ~1907 |
Census Appearances
1920
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 18
Cook, Illinois · implied b. ~1912 — 9 household members
| Surname | Peterson |
| Given Name | Mildred A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Can Read/Write | Yes |
| 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 Mildred Peterson across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mildred Peterson
Daughter · 1930 · age 18 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Robert Peterson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Peterson
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Peterson
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsa Peterson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Peterson
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertil Peterson
Sibling · 1930 · age 16
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:illinoiscensus00reel482:0147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Norma Falcon | 30 | Wife | Pharmacist | Illinois |
| 2 | Norma C Falcon | 6 | Daughter | None | Illinois |
| 3 | Howard G Falcon | 3 | Son | None | Illinois |
| 4 | Holborg Nelson | 35 | Head | Sailor | Norway |
| 5 | Hannah Nelson | 34 | Wife | None | Illinois |
| 6 | Annamarie Nelson | 5 | Daughter | None | Illinois |
| 7 | Eileen Nelson | 3 | Daughter | None | Illinois |
| 8 | Florence Harrison | 41 | Head | Sales Represent | Illinois |
| 9 | Robert R Harrison | 15 | Son | None | Illinois |
| 10 | August Sass | 59 | Head | Retired | Ill |
| 11 | Mary Sass | 54 | Wife | None | Illinois |
| 12 | Carl A Peterson | 56 | Head | Carpenter | Sweden |
| 13 | Alma C Peterson | 45 | Wife | None | Sweden |
| 14 | Carl H Peterson | 23 | Son | Mechanic | Illinois |
| 15 | Frank Peterson | 22 | Son | Chauffeur | Illinois |
| 16 | Edith C Peterson | 20 | Daughter | Clerical Work | Illinois |
| 17 | Mildred A Peterson THIS PERSON | 18 | Daughter | None | Illinois |
| 18 | Bertil Peterson | 16 | Son | None | Illinois |
| 19 | Elsa Peterson | 13 | Daughter | None | Illinois |
| 20 | Robert Peterson | 9 | Son | None | Illinois |
| 21 | Frank Switalski | 66 | Head | Retired | Poland |
| 22 | Bernice Switalski | 67 | Wife | None | Poland |
| 23 | Henry Gilardon | 39 | Head | Worker | Germany |
| 24 | Ida Gilardon | 34 | Wife | None | Illinois |
| 25 | William Gilardon | 11 | Son | None | Illinois |
| 26 | Eugene Funtean | 44 | Head | Carpenter | Roumania |
| 27 | Mary Funtean | 38 | Wife | None | Hungary |
| 28 | Flora Barker | 57 | Mother-in-law | Finisher | Hungary |
| 29 | Adolph Broeker | 64 | Head | Attendant | Switzerland |
| 30 | Albertina Broeker | 59 | Wife | None | Illinois |
| 31 | Carl A Sandahl | 44 | Head | Civil Engineer | Illinois |
| 32 | Helga Sandahl | 41 | Wife | None | Illinois |
| 33 | Jean Sandahl | 15 | Daughter | None | Illinois |
| 34 | Carl Sandahl | 9 | Son | None | Illinois |
| 35 | Glenn Sandahl | 5 | Son | None | Illinois |
| 36 | Matilda Malmberg | 80 | Mother-in-law | None | Sweden |
| 37 | Algot Malmberg | 52 | Brother-in-law | Tool Maker | Sweden |
| 38 | Albert Sandberg | 52 | Head | Shipping Clerk | Sweden |
| 39 | Anna Sandberg | 51 | Wife | None | Finland |
| 40 | Thomas J Kenealy | 32 | Head | Policeman | Illinois |
| 41 | Edith E Kenealy | 36 | Wife | None | Illinois |
| 42 | John Kenealy | 65 | Head | Foreman | Ireland F.S. |
| 43 | Elizabeth Kenealy | 63 | Wife | None | Ireland F.S. |
| 44 | Maurice Kenealy | 25 | Son | Chauffeur | Illinois |
| 45 | John Kenealy | 22 | Son | Clerk | Illinois |
| 46 | Elizabeth Kenealy | 11 | Daughter | None | Illinois |
| 47 | George Johnson | 42 | Head | Driver | Sweden |
| 48 | Marian Johnson | 38 | Wife | None | Illinois |
| 49 | Dorothy M Johnson | 5 | Daughter | None | Illinois |
| 50 | Virginia M Johnson | 1 | Daughter | None | Illinois |
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)