MS
Mary Sheridan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Sheridan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 7-person household.
Age 73
b. ~1867
Female
Head
Born: Illinois
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sheridan |
| Given Name | Mary G |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1867 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Griffing | Other | — | 12 | ~1928 |
| Edward Sheridan | Son | — | 50 | ~1890 |
| William Sheridan | Son | — | 45 | ~1895 |
| Edward Sheridan | Other | — | 20 | ~1920 |
| Mary Griffing | Daughter | — | 39 | ~1901 |
| Joan Griffing | Other | — | 7 | ~1933 |
| Mary Sheridan | Head | — | 73 | ~1867 |
Census Appearances
1920
Cook, Illinois
Head, age 51
Cook, Illinois · implied b. ~1869 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheridan |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 63
Cook, Illinois · implied b. ~1867 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheridan |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 16000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 73
Cook-County, Illinois · implied b. ~1867 — 7 household members
| Surname | Sheridan |
| Given Name | Mary G |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 8 |
| 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 Sheridan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Sheridan
Head · 1940 · age 73 · b. ~1867 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00996-00744)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nathan Greenberg | 48 | Head | Automobile Dealer | Russia |
| 2 | Jane D Greenberg | 33 | Wife | — | Minnesota |
| 3 | Lena Greenberg | 65 | Mother | — | Russia |
| 4 | Morris Bern | 21 | Nephew | Asst Mgr | Illinois |
| 5 | Sonia Bern | 40 | Sister | — | Russia |
| 6 | Floyd Tafel | 36 | Head | Cashier | Illinois |
| 7 | Elsie D Tafel | 38 | Wife | — | Illinois |
| 8 | Nancy Tafel | 5 | Daughter | — | Illinois |
| 9 | Thomas Tafel | 0 | Son | — | Illinois |
| 10 | Alfred Aron | 44 | Head | Proprietor | Illinois |
| 11 | Estelle Q Aron | 37 | Wife | — | Russia |
| 12 | Marion Aron | 16 | Daughter | — | Illinois |
| 13 | Eugene Aron | 10 | Son | — | Illinois |
| 14 | Sol R Katz | 27 | Head | Salesman | Missouri |
| 15 | Ethel Katz | 25 | Wife | — | Illinois |
| 16 | Linda Katz | 2 | Daughter | — | Illinois |
| 17 | Edmund O'Connell | 47 | Head | Salesman | Illinois |
| 18 | Catherine O'Connell | 45 | Wife | — | Illinois |
| 19 | James O'Connell | 15 | Son | — | Illinois |
| 20 | Thomas O'Connell | 13 | Son | — | Illinois |
| 21 | Mary O'Connell | 4 | Daughter | — | Illinois |
| 22 | Lucille D Keefe | 36 | Head | Private Secretary | Illinois |
| 23 | Irene Carroll | 23 | Niece | Stenographer | Illinois |
| 24 | Mary Sheridan | 83 | Aunt | — | Illinois |
| 25 | Mary G Sheridan THIS PERSON | 73 | Head | — | Illinois |
| 26 | Edward Sheridan | 50 | Son | Proprietor | Illinois |
| 27 | William Sheridan | 45 | Son | Lawyer | Illinois |
| 28 | Edward Jr Sheridan | 20 | Grand-son | — | Illinois |
| 29 | Mary Griffing | 39 | Daughter | Substitute Teacher | Illinois |
| 30 | Robert Griffing | 12 | Grand-son | — | Illinois |
| 31 | Joan Griffing | 7 | Grand-daughter | — | Illinois |
| 32 | Thomas Pautin | 24 | Head | Salesman | Illinois |
| 33 | Geraldine Pautin | 24 | Wife | — | Illinois |
| 34 | Thomas Pautin | 1 | Son | — | Illinois |
| 35 | Ronald Pautin | 0 | Son | — | Illinois |
| 36 | Helen Q Pfeiffer | 49 | Mother-in-law | — | Missouri |
| 37 | Eugene Wild | 41 | Head | Manager-Clerk | Illinois |
| 38 | Sara D Wild | 35 | Wife | Bookkeeper | Illinois |
| 39 | Myron D Nadd | 62 | Head | Truck Driver | Poland |
| 40 | Fannie Nadd | 57 | Wife | — | Poland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)