MC
Mary Clifford — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Clifford across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1906), then head of a 8-person household.
Age 24
b. ~1906
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Clifford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1906 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Charles Clifford | Head | — | 54 | ~1876 |
| Lillian Clifford | Daughter | — | 19 | ~1911 |
| Mary Clifford | Daughter | — | 24 | ~1906 |
| Edward Clifford | Son | — | 17 | ~1913 |
| Nellie Clifford | Spouse | — | 55 | ~1875 |
| Joseph Clifford | Son | — | 22 | ~1908 |
| William Clifford | Son | — | 21 | ~1909 |
| Paul Clifford | Son | — | 15 | ~1915 |
Census Appearances
1920
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clifford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 24
Cook, Illinois · implied b. ~1906 — 8 household members
| Surname | Clifford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Stenographer |
| Industry | Office |
| Class of Worker | W |
| 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 Mary Clifford across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clifford
Daughter · 1930 · age 24 · b. ~1906 · Illinois
★ You are viewing this record
Sibling
Lillian Clifford
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Clifford
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Clifford
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Clifford
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Clifford
Sibling · 1930 · 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
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:illinoiscensus00reel462:0246)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank O Kulber | 62 | Father | Tailor | Czecho-Slovakia |
| 2 | Salvatore Petrucci | 32 | Brother | Clerk | Italy |
| 3 | Jack Fine | 34 | Head | Butcher | Lithuania |
| 4 | Pauline Fine | 34 | Wife | — | Lithuania |
| 5 | Harry Fine | 15 | Son | Butcher | Lithuania |
| 6 | Betty Fine | 17 | Daughter | — | Lithuania |
| 7 | Ruth Fine | 12 | Daughter | — | Illinois |
| 8 | Milton Fine | 9 | Son | — | Illinois |
| 9 | Florence Fine | 7 | Daughter | — | Illinois |
| 10 | Irving White | 30 | Head | Painter | Poland |
| 11 | Gertie White | 24 | Wife | — | Poland |
| 12 | Beatrice White | 5 | Daughter | — | Illinois |
| 13 | Gertrude White | 1 | Daughter | — | Illinois |
| 14 | Philip Gostier | 50 | Head | Tailor | Poland |
| 15 | Rose Gostier | 53 | Wife | — | Poland |
| 16 | Joseph Crane | 37 | Head | Engineer | Illinois |
| 17 | Linda Crane | 33 | Wife | — | Illinois |
| 18 | Robert Crane | 10 | Son | — | Illinois |
| 19 | Josephine Crane | 8 | Daughter | — | Illinois |
| 20 | Otto Sorensen | 32 | Head | Garage Man | Illinois |
| 21 | Rose Sorensen | 22 | Wife | — | Illinois |
| 22 | Raymond Lund | 18 | Brother | — | Illinois |
| 23 | Patrick Dempsey | 53 | Head | Steamfitter | Illinois |
| 24 | Mary H Dempsey | 43 | Wife | — | Illinois |
| 25 | Charles Clifford | 54 | Head | Plumber | Illinois |
| 26 | Nellie Clifford | 55 | Wife | — | Illinois |
| 27 | Mary Clifford THIS PERSON | 24 | Daughter | Stenographer | Illinois |
| 28 | Joseph Clifford | 22 | Son | Plumber | Illinois |
| 29 | William Clifford | 21 | Son | Plumber | Illinois |
| 30 | Lillian Clifford | 19 | Daughter | — | Illinois |
| 31 | Edward Clifford | 17 | Son | — | Illinois |
| 32 | Paul Clifford | 15 | Son | — | Illinois |
| 33 | Michael Tully | 33 | Head | Fireman | Ireland |
| 34 | Bessie Tully | 35 | Wife | — | Ireland |
| 35 | Margaret Tully | 7 | Daughter | — | Illinois |
| 36 | Mary Tully | 2 | Daughter | — | Illinois |
| 37 | Thomas Mcneely | 32 | Brother | Fireman | Ireland |
| 38 | Michael Mcneely | 28 | Brother | Shipping | Ireland |
| 39 | Morris Fingrah | 50 | Head | Tailor | Russia |
| 40 | Anna Fingrah | 30 | Wife | — | Illinois |
| 41 | Herman Siegal | 38 | Head | Salesman | Russia |
| 42 | Doris Siegal | 35 | Wife | — | Illinois |
| 43 | Lionel Siegal | 14 | Son | — | Illinois |
| 44 | Muriel Siegal | 8 | Daughter | — | Illinois |
| 45 | Louise Hordlich | 32 | Servant | Housework | Bohemia |
| 46 | Albert Boylan | 62 | Head | Bricklayer | England |
| 47 | Katherine Boylan | 57 | Wife | — | England |
| 48 | Rose Tully | 60 | Head | Teacher | Wisconsin |
| 49 | Margaret Tully | 20 | Niece | Clerk | Illinois |
| 50 | Catherine Tully | 15 | Niece | — | 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)