MR
Mary Reilly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Reilly across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 9-person household.
Age 13
b. ~1917
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Reilly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Jeanne Reilly | Daughter | — | 9 | ~1921 |
| Elizabeth Reilly | Daughter | — | 17 | ~1913 |
| Isabelle Reilly | Daughter | — | 22 | ~1908 |
| Mary Reilly | Daughter | — | 13 | ~1917 |
| Elizabeth Reilly | Head | — | 42 | ~1888 |
| John Reilly | Son | — | 19 | ~1911 |
| Anthony Reilly | Son | — | 6 | ~1924 |
| William Reilly | Son | — | 11 | ~1919 |
| Thomas Reilly | Son | — | 21 | ~1909 |
Census Appearances
1930
Cook, Illinois
Daughter, age 13
Cook, Illinois · implied b. ~1917 — 9 household members
| Surname | Reilly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 23
Cook-County, Illinois · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | Mary A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | School Clerk |
| Industry | Elementary School |
| Class of Worker | PW |
| Hours Worked | 33 |
| Income (1939) | 366 |
| Highest Grade | H 4 |
| 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 Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Reilly
Daughter · 1930 · age 13 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Anthony Reilly
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Reilly
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Reilly
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabelle Reilly
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Reilly
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Reilly
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanne Reilly
Sibling · 1930 · age 9
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:illinoiscensus00reel490:0758)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Vogt | 53 | Wife-H | — | Germany |
| 2 | Theodore Vogt | 26 | Son | Baker | Danzig |
| 3 | John Vogt | 23 | Son | Salesman | Danzig |
| 4 | Elizabeth Vogt | 19 | Daughter | Stenographer | Danzig |
| 5 | George Vogt | 14 | Son | — | Illinois |
| 6 | Frank Vogt | 12 | Son | — | Illinois |
| 7 | Arthur J. Douglas | 45 | Head | Traffic Mgr. | Illinois |
| 8 | Emma J. Douglas | 45 | Wife-H | — | Germany |
| 9 | Peter Luffy | 49 | Head | Foreman | Ireland |
| 10 | Mary Luffy | 46 | Wife-H | — | England |
| 11 | Catherine Mcavoy | 37 | Boarder | Seamstress | Ireland |
| 12 | John Dickes | 51 | Head | Com. Artist | Germany |
| 13 | Louise Dickes | 39 | Wife-H | — | Germany |
| 14 | Elizabeth Reilly | 42 | Head | — | Wisconsin |
| 15 | Isabelle Reilly | 22 | Daughter | Operator | Wisconsin |
| 16 | Thomas Reilly | 21 | Son | Butcher | Wisconsin |
| 17 | John Reilly | 19 | Son | Developing X-Ray | Illinois |
| 18 | Elizabeth Reilly | 17 | Daughter | Operator | Illinois |
| 19 | Mary Reilly THIS PERSON | 13 | Daughter | — | Illinois |
| 20 | William Reilly | 11 | Son | — | Illinois |
| 21 | Jeanne Reilly | 9 | Daughter | — | Illinois |
| 22 | Anthony Reilly | 6 | Son | — | Illinois |
| 23 | Leonard Morrison | 40 | Head | Motor-Man | Texas |
| 24 | Margaret Morrison | 62 | Wife-H | — | Iowa |
| 25 | Bertha Commenhe | 54 | Head | — | Germany |
| 26 | Gertrude Commenhe | 19 | Daughter | Servant | Arkansas |
| 27 | Edith Commenhe | 17 | Daughter | Saleslady | Arkansas |
| 28 | Robert Commenhe | 15 | Son | — | Arkansas |
| 29 | Walter Commenhe | 10 | Son | — | Arkansas |
| 30 | Alex Cumbrowski | 58 | Head | Office Work | Illinois |
| 31 | Cecelia Cumbrowski | 56 | Mother-H | — | Germany |
| 32 | Herman Ferrari | 67 | Head | Cabinet Mkr. | Germany |
| 33 | Augusta Ferrari | 68 | Wife-H | — | Germany |
| 34 | Walter Ferrari | 40 | Son | Furrier | Illinois |
| 35 | William Ferrari | 26 | Son | Carpenter | Illinois |
| 36 | Frank H. Braun | 42 | Son-in-law | Book-Keeper | Illinois |
| 37 | Norman Braun | 9 | Grandson | — | Illinois |
| 38 | Marion Braun | 8 | Granddaughter | — | Illinois |
| 39 | Virginia Braun | 6 | Granddaughter | — | Illinois |
| 40 | Frank Tocher | 29 | Head | Chauffeur | New York |
| 41 | Birdie Tocher | 26 | Wife-H | — | Michigan |
| 42 | Eleanor Tocher | 5 | Daughter | — | Illinois |
| 43 | Lorraine Tocher | 1 | Daughter | — | Illinois |
| 44 | Mabel Valdo | 28 | Boarder | — | Michigan |
| 45 | James Rocklund | 50 | Head | Cabinet Mkr. | Sweden |
| 46 | Anna Rocklund | 44 | Wife-H | — | Sweden |
| 47 | John Rocklund | 19 | Son | Draftsman | Illinois |
| 48 | Helen Rocklund | 17 | Daughter | — | Illinois |
| 49 | Paul Vogel | 42 | Head | Machinist | Germany |
| 50 | Gervanes Vogel | 35 | Wife-H | — | Germany |
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)