MN
Mary Nash — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Nash across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Phillip & Rose — first a daughter (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Nash |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Mail Order House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Phillip Nash | Head | — | 80 | ~1860 |
| Rose Nash | Spouse | — | 74 | ~1866 |
| Mary Nash | Daughter | — | 31 | ~1909 |
Census Appearances
1920
Cook, Illinois
Daughter, age 12
Cook, Illinois · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nash |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 23
Cook, Illinois · implied b. ~1907 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nash |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | West Virginia |
| Occupation | Stenographer |
| Industry | Mail Ord |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 31
Cook-County, Illinois · implied b. ~1909 — 3 household members
| Surname | Nash |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Stenographer |
| Industry | Mail Order House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Nash across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Phillip Nash (~0.92 confidence) and mother Rose Nash (~0.92 confidence) and mother Rose Nash (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Phillip Nash
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Rose Nash
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Rose Nash
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Nash
Daughter · 1940 · age 31 · b. ~1909 · 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
39 people indexed on this census page (nara:1940:m-t0627-00995-00632)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edwin S. Bury | 40 | Head | Clerk Keeper | Illinois |
| 42 | Sarah Bury | 40 | Wife | — | Illinois |
| 43 | Perry Boyle | 26 | Brother-in-law | Attendant | Illinois |
| 44 | Arthur Ullman | 57 | Head | Sales Manager | New York |
| 45 | Mamie Ullman | 56 | Wife | — | Illinois |
| 46 | David Rynn | 45 | Head | House Foreman | Scotland |
| 47 | Elizabeth Rynn | 44 | Wife | — | Illinois |
| 48 | John Rynn | 23 | Son | Laborer | Illinois |
| 49 | Della Rynn | 22 | Daughter | Office Clerk | Illinois |
| 50 | Raymond Rynn | 12 | Son | — | Illinois |
| 51 | David Rynn | 9 | Son | — | Illinois |
| 52 | Marie Rynn | 7 | Daughter | — | Illinois |
| 53 | Frank J. Donohue | 44 | Head | Police Officer | Illinois |
| 54 | Marguerite Donohue | 43 | Wife | — | Illinois |
| 55 | William Donohue | 19 | Son | — | Illinois |
| 56 | Marguerite Donohue | 15 | Daughter | — | Illinois |
| 57 | Joan Donohue | 11 | Daughter | — | Illinois |
| 58 | Phillip Nash | 80 | Head | — | Pennsylvania |
| 59 | Rose Nash | 74 | Wife | — | West Virginia |
| 60 | Mary Nash THIS PERSON | 31 | Daughter | Stenographer | Illinois |
| 61 | Richard Cronan | 47 | Head | Police Officer | Ireland |
| 62 | Mary Cronan | 33 | Wife | — | South Dakota |
| 63 | Marie Cronan | 16 | Daughter | — | Illinois |
| 64 | Elaine Cronan | 14 | Daughter | — | Illinois |
| 65 | Gerald Cronan | 2 | Son | — | Illinois |
| 67 | Isaac Catalano | 58 | Head | — | Italy |
| 68 | Dorthy Catalano | 16 | Daughter | — | Illinois |
| 69 | Jeanette Catalano | 12 | Daughter | — | Illinois |
| 70 | Franklin Catalano | 7 | Son | — | Illinois |
| 71 | Frank J. Marshall | 55 | Head | Stationary Engineer | Illinois |
| 72 | Marguerite Marshall | 56 | Wife | — | Indiana |
| 73 | Catherine Marshall | 27 | Daughter | Stenographer | Indiana |
| 74 | Galvin Julia Marshall | 51 | Sister-in-law | — | Indiana |
| 75 | Thomas Reynolds | 80 | Head | — | Illinois |
| 76 | Grace Reynolds | 43 | Daughter | Editor | Illinois |
| 77 | Donald Dean | 45 | Son-in-law | Salesman | Iowa |
| 78 | Mary Dean | 45 | Daughter | Office Clerk | Illinois |
| 79 | Donald Dean | 8 | Grandson | — | Illinois |
| 80 | Simon Connors | 71 | Lodger | — | Illinois |
Pedigree Summary
Mary
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)