MD
Mary Delaney — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Delaney across the 1900, 1910 and 1920 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1868), then head of a 4-person household.
Age 52
b. ~1868
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1868 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Michael Delaney | Son | — | 20 | ~1900 |
| Elizabeth Delaney | Daughter | — | 16 | ~1904 |
| John Delaney | Head | — | 53 | ~1867 |
| Mary Delaney | Spouse | — | 52 | ~1868 |
Census Appearances
1900
Cook, Illinois
Spouse, age 37
Cook, Illinois · implied b. ~1863 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Deleny |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Aug |
| Birth Year | 1863 |
| Year of Immigration | 1888 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Cook, Illinois
Spouse, age 45
Cook, Illinois · implied b. ~1865 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 21 |
| Children Born | 3 |
| Children Living | 3 |
| Year of Immigration | 1884 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Cook, Illinois
Spouse, age 52
Cook, Illinois · implied b. ~1868 — 4 household members
| Surname | Delaney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1885 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Delaney across 3 US Census years (1900, 1910 and 1920) in Cook, Illinois, using XGBoost record linkage.
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This person
Anchor record
Mary Delaney
Spouse · 1920 · age 52 · b. ~1868 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu334unit:0635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Theresa Mccormack | 53 | Head | — | New York |
| 52 | Vincent Mccormack | 28 | Son | Salesman | New York |
| 53 | Loretta Mccormack | 17 | Daughter | Stenographer | New York |
| 54 | George Fasert | 49 | Head | Accountant | Wisconsin |
| 55 | Clara Fasert | 37 | Wife | — | Iowa |
| 56 | Walter Klein | 34 | Head | Printer | Illinois |
| 57 | Genevieve Klein | 40 | Wife | — | Michigan |
| 58 | Mathilda Kroopland | 61 | Mother-in-law | Maid | Holland |
| 59 | Frank Miskelly | 36 | Head | Manager | Michigan |
| 60 | Margaret Miskelly | 37 | Wife | — | Minnesota |
| 61 | Marie Davies | 80 | Head | — | Sweden |
| 62 | Carl Nelson | 44 | Son-in-law | Clerk | Nebraska |
| 63 | Amanda Nelson | 40 | Daughter | — | Illinois |
| 64 | Hugh Hughes | 63 | Head | Supt. Head | England |
| 65 | Hattie Hughes | 64 | Wife | — | England |
| 66 | Joseph Cacary | 42 | Head | Clergyman | Illinois |
| 67 | Richard Kelley | 28 | Roomer | Clergyman | Illinois |
| 68 | Philip Mahoney | 28 | Roomer | Clergyman | Illinois |
| 69 | William Gavin | 24 | Roomer | Clergyman | Illinois |
| 70 | Margaret Mcgrath | 24 | Maid | Servant | Ireland |
| 71 | Catherine Turkin | 25 | Maid | Servant | Ireland |
| 72 | John Mcelligott | 45 | Head | Soft Drink | Ireland |
| 73 | Mary Mcelligott | 36 | Wife | — | Ireland |
| 74 | Mary Mcelligott | 11 | Daughter | — | Illinois |
| 75 | Joseph Mcelligott | 6 | Son | — | Illinois |
| 76 | John Fazil | 35 | Head | Barber | Italy |
| 77 | Rosie Fazil | 33 | Wife | — | Italy |
| 78 | Lena Fazil | 12 | Daughter | — | Illinois |
| 79 | Mamie Fazil | 7 | Daughter | — | Illinois |
| 80 | Otto Fazil | 3 | Son | — | Illinois |
| 81 | John Delaney | 53 | Head | No Trade | Ireland |
| 82 | Mary Delaney THIS PERSON | 52 | Wife | — | Ireland |
| 83 | Michael Delaney | 20 | Son | Clerk | Illinois |
| 84 | Elizabeth Delaney | 16 | Daughter | — | Illinois |
| 85 | Annie Herbert | 74 | Head | — | Canada |
| 86 | Francis Seidelmeyer | 50 | Boarder | — | New York |
| 87 | Herbert Seidelmeyer | 25 | Grandson | Warehouseman | New York |
| 88 | Howard Seidelmeyer | 22 | Grandson | Warehouseman | New York |
| 89 | Anna Banks | 52 | Head | — | Canada |
| 90 | Iona Banks | 22 | Daughter | Clerk | Illinois |
| 91 | India Banks | 50 | Sister | Mail Clerk | Wisconsin |
| 92 | Lilah Ludlow | 65 | Head | — | England |
| 93 | Sarah Ludlow | 45 | Daughter | Manager | Illinois |
| 94 | Edith Ludlow | 38 | Daughter | Clerk | Illinois |
| 95 | Elizabeth Kibay | 28 | Head | — | Illinois |
| 96 | August Kibay | 42 | Head | Worker | Germany |
| 97 | Frances Kibay | 35 | Head | — | Illinois |
| 98 | August Kibay | 22 | Son | Stenographer | Illinois |
| 99 | Adeline Kibay | 20 | Daughter | Bookkeeper | Illinois |
| 100 | Arthur Kibay | 18 | Son | Clerk | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)