RA
Ruth Alexander — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Ruth Alexander across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 9-person household.
Age 16
b. ~1914
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Alexander |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1914 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Robert Alexander | Son | — | 14 | ~1916 |
| George Alexander | Head | — | 49 | ~1881 |
| Anna Alexander | Daughter | — | 20 | ~1910 |
| Elsie Alexander | Daughter | — | 19 | ~1911 |
| Ruth Alexander | Daughter | — | 16 | ~1914 |
| Dorothy Alexander | Daughter | — | 12 | ~1918 |
| Anna Alexander | Other | — | 48 | ~1882 |
| Edgar Alexander | Son | — | 22 | ~1908 |
| Arthur Alexander | Son | — | 10 | ~1920 |
Census Appearances
1920
Cook, Illinois
Daughter, age 6
Cook, Illinois · implied b. ~1914 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 16
Cook, Illinois · implied b. ~1914 — 9 household members
| Surname | Alexander |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| 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 |
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 Ruth Alexander across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Alexander
Daughter · 1930 · age 16 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Anna Alexander
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Alexander
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edgar Alexander
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Alexander
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Alexander
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Alexander
Sibling · 1930 · age 14
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:illinoiscensus00reel429:0635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Jr Flynn | 21 | Boarder | Bell Hop | New York State |
| 2 | Winifred Flynn | 21 | Sister | Bookkeeper | England |
| 3 | Arthur Thomas | 18 | Boarder | Laborer | England |
| 4 | Clinton Downey | 51 | Head | Conductor | Indiana |
| 5 | Agnes Downey | 47 | Wife-H | — | Illinois |
| 6 | Charles Downey | 45 | Brother | Foreman | Indiana |
| 7 | John Major | 28 | Head | Laborer | Hungary |
| 8 | Barbara Major | 24 | Wife-H | — | Hungary |
| 9 | Margaret Major | 4 | Daughter | — | Pennsylvania |
| 10 | Elsie Major | 2 | Daughter | — | Pennsylvania |
| 11 | Anna Major | 1 | Daughter | — | West Virginia |
| 12 | Robert Major | 0 | Son | — | West Virginia |
| 13 | Peter Lake | 40 | Head | Truck Driver | Illinois |
| 14 | Emma Lake | 36 | Wife-H | — | Illinois |
| 15 | Charles Lake | 17 | Son | Clerk | Illinois |
| 16 | William Lake | 15 | Son | Salesman | Illinois |
| 17 | Margaret Lake | 13 | Daughter | — | Illinois |
| 18 | Peter Lake | 12 | Son | — | Illinois |
| 19 | Helen Lake | 10 | Daughter | — | Illinois |
| 20 | Mary Lake | 8 | Daughter | — | Illinois |
| 21 | Mildred Lake | 6 | Daughter | — | Illinois |
| 22 | John Lake | 3 | Son | — | Illinois |
| 23 | Emma Lake | 2 | Daughter | — | Illinois |
| 24 | Thomas Lake | 1 | Son | — | Illinois |
| 25 | Henry Siemon | 66 | Head | — | Germany |
| 26 | Mary Siemon | 59 | Wife-H | — | Germany |
| 27 | George Alexander | 49 | Head | Locomotive Engineer | Illinois |
| 28 | Anna Alexander | 48 | Wife-H | — | Illinois |
| 29 | Edgar L. Alexander | 22 | Son | Repairman | Illinois |
| 30 | Anna Mary Alexander | 20 | Daughter | Stenographer | Illinois |
| 31 | Elsie Alexander | 19 | Daughter | Stenographer | Illinois |
| 32 | Ruth Alexander THIS PERSON | 16 | Daughter | — | Illinois |
| 33 | Robert Alexander | 14 | Son | — | Illinois |
| 34 | Dorothy Alexander | 12 | Daughter | — | Illinois |
| 35 | Arthur R. Alexander | 10 | Son | — | Illinois |
| 36 | Joseph Osterdorf | 52 | Head | Carpenter | Indiana |
| 37 | Clara Osterdorf | 34 | Wife-H | — | Illinois |
| 38 | Fred Benson | 70 | Head | — | Michigan |
| 39 | Helena Benson | 63 | Wife-H | — | Germany |
| 40 | Elsie E. Benson | 33 | Daughter | Stenographer | Michigan |
| 41 | Arthur John Lennon | 32 | Head | Pay Roll Clerk | Illinois |
| 42 | Lillian Lennon | 32 | Wife-H | — | Illinois |
| 43 | Frances Lennon | 10 | Daughter | — | Illinois |
| 44 | Arthur Lennon | 8 | Son | — | Illinois |
| 45 | Anna Lennon | 6 | Daughter | — | Illinois |
| 46 | Theresa Hermanson | 56 | Mother-in-law | Caretaker | Sweden |
| 47 | Harry G. Larson | 34 | Head | Trucking | Illinois |
| 48 | Edna Larson | 29 | Wife-H | — | Illinois |
| 49 | Florence Larson | 3 | Daughter | — | Illinois |
| 50 | Harry Jr. Larson | 1 | Son | — | 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)