MM
Mary Mcnally — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Mcnally across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 7-person household.
Age 14
b. ~1916
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McNally |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| 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 | ~1916 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Annie Mcnally | Spouse | — | 46 | ~1884 |
| William Mcnally | Son | — | 21 | ~1909 |
| Isabelle Mcnally | Daughter | — | 20 | ~1910 |
| James Mcnally | Head | — | 48 | ~1882 |
| Mary Mcnally | Daughter | — | 14 | ~1916 |
| Margaret Mcnally | Daughter | — | 23 | ~1907 |
| Samuel Mcnally | Son | — | 18 | ~1912 |
Census Appearances
1930
Cook, Illinois
Daughter, age 14
Cook, Illinois · implied b. ~1916 — 7 household members
| Surname | McNally |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 25
Cook-County, Illinois · implied b. ~1915 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNally |
| Given Name | Margaret P. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Occupation | File Clerk |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 800 |
| Highest Grade | Hs 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 Mcnally across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcnally
Daughter · 1930 · age 14 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Isabelle Mcnally
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcnally
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Mcnally
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcnally
Sibling · 1930 · age 21
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:illinoiscensus00reel436:0422)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert Russell | 40 | Head | Laborer | Irish Free State |
| 2 | Elizabeth Russell | 43 | Wife | None | Irish Free State |
| 3 | Elizabeth Russell | 14 | Daughter | None | Illinois |
| 4 | Deborah Russell | 13 | Daughter | None | Illinois |
| 5 | Albert Jr Russell | 11 | Son | None | Illinois |
| 6 | William Russell | 8 | Daughter | None | Illinois |
| 7 | Keefe | 75 | Michael | None | Irish Free State |
| 8 | John Mcenery | 57 | Head | Ticket Taker | Illinois |
| 9 | Catherine Mcenery | 58 | Wife | None | Illinois |
| 10 | John Jr Mcenery | 31 | Son | Absent | Illinois |
| 11 | Michael Jordan | 55 | Head | Laborer | Irish Free State |
| 12 | Bee Jordan | 53 | Wife | None | Irish Free State |
| 13 | Beatrice Jordan | 17 | Daughter | None | Illinois |
| 14 | John Jordan | 15 | Son | None | Illinois |
| 15 | James Jordan | 11 | Son | None | Illinois |
| 16 | Charles Lishman | 49 | Head | Laborer | Lithuania |
| 17 | Agatha Lishman | 39 | Wife | None | Lithuania |
| 18 | John Lishman | 11 | Son | None | Illinois |
| 19 | Anthony Lishman | 10 | Son | None | Illinois |
| 20 | Charles Rosenberg | 21 | Head | Laborer | Illinois |
| 21 | Stella Rosenberg | 17 | Daughter | Laborer | Illinois |
| 22 | Joseph Bellino | 45 | Head | Laborer | Lithuania |
| 23 | Julia Bellino | 45 | Wife | None | Lithuania |
| 24 | John Bellino | 20 | Son | Laborer | Illinois |
| 25 | Tony Bellino | 13 | Son | None | Illinois |
| 26 | Ursula Bellino | 11 | Daughter | None | Illinois |
| 27 | Charles Bellino | 5 | Son | None | Illinois |
| 28 | James Mcnally | 48 | Head | Laborer | Scotland |
| 29 | Annie Mcnally | 46 | Wife | None | Scotland |
| 30 | Samuel Mcnally | 18 | Son | Helper | Arkansas |
| 31 | William Mcnally | 21 | Son | Office Boy | Illinois |
| 32 | Isabelle Mcnally | 20 | Daughter | None | Illinois |
| 33 | Mary Mcnally THIS PERSON | 14 | Daughter | None | Illinois |
| 34 | Margaret Mcnally | 23 | Daughter | Stenographer | Illinois |
| 35 | Frank Mcmahon | 36 | Head | Chauffeur | Illinois |
| 36 | Charlotte Mcmahon | 33 | Wife | None | Illinois |
| 37 | Charlotte Jr Mcmahon | 2 | Daughter | None | Illinois |
| 38 | Albert Mcmahon | 2 | Son | None | Illinois |
| 39 | Mary Payne | 42 | Head | Laundress | Illinois |
| 40 | Mary Jr Payne | 19 | Daughter | Secretary | Illinois |
| 41 | Kate Nolan | 66 | Boarder | None | Irish Free State |
| 42 | Mary Stack | 54 | Head | Wash Woman | Irish Free State |
| 43 | Martin Stack | 33 | Son | Upholsterer | Illinois |
| 44 | Patrick Stack | 24 | Son | Laborer | Illinois |
| 45 | — | None | — | — | — |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | — | None | — | — | — |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
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)