DM
Dorothy Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Dorothy Murphy across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Cornelius & Catherine — first a daughter (b.~1912), then head of a 6-person household.
Age 28
b. ~1912
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Candy-Helper |
| Industry | Candy Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Candy-Helper |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1912 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Jane Murphy | Son | — | 12 | ~1928 |
| Helen Murphy | Spouse | — | 52 | ~1888 |
| Joseph Murphy | Son | — | 20 | ~1920 |
| Dorothy Murphy | Daughter | — | 28 | ~1912 |
| Donald Young | Other | — | 8 | ~1932 |
| Peter Murphy | Head | — | 54 | ~1886 |
Census Appearances
1920
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Dorothy F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 17
Cook, Illinois · implied b. ~1913
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 28
Cook-County, Illinois · implied b. ~1912 — 6 household members
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Candy-Helper |
| Industry | Candy Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| 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 Dorothy Murphy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Cornelius Murphy (~0.92 confidence) and mother Catherine Murphy (~0.92 confidence) and father Peter Murphy (~0.92 confidence) and mother Helen Murphy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cornelius Murphy
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Catherine Murphy
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Peter Murphy
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Helen Murphy
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Murphy
Daughter · 1940 · age 28 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Joseph Murphy
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Murphy
Sibling · 1940 · age 12
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
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-t0627-00978-00436)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eugene Natola | 8 | Son | — | Illinois |
| 2 | Anthony Natola | 6 | Son | — | Illinois |
| 3 | Angela Natola | 4 | Daughter | — | Illinois |
| 4 | Joseph Natola | 0 | Son | — | Illinois |
| 5 | Ludwig Knapik | 44 | Head | Laborer | Poland |
| 6 | Rose Knapik | 42 | Wife | — | Poland |
| 7 | Wanda Knapik | 26 | Daughter | Machine Operator | Illinois |
| 8 | Charlotte Knapik | 24 | Daughter | Machine Operator | Illinois |
| 9 | Florence Knapik | 16 | Daughter | — | Illinois |
| 10 | Richard Knapik | 9 | Son | — | Illinois |
| 11 | Charles Philpott | 33 | Head | Punch Press | Kentucky |
| 12 | Margaret Philpott | 27 | Wife | — | Illinois |
| 13 | Bernadine Philpott | 8 | Daughter | — | Illinois |
| 14 | Janine Philpott | 5 | Daughter | — | Illinois |
| 15 | Jerome Philpott | 7 | Son | — | Illinois |
| 16 | Marlene Philpott | 3 | Daughter | — | Illinois |
| 17 | Rita-Ann Philpott | 1 | Daughter | — | Illinois |
| 18 | Michael Venturini | 47 | Head | Tailor | Italy |
| 19 | Cosmo Venturini | 23 | Son | Office Employee | Illinois |
| 20 | John Kintzley | 51 | Head | Coal-Man | Czecho-Slovakia |
| 21 | Susanna Kintzley | 53 | Wife | — | Czecho-Slovakia |
| 22 | Steve Lesak | 31 | Head | Shipping Clerk | Czecho-Slovakia |
| 23 | Dorothy Lesak | 31 | Wife | — | Czecho-Slovakia |
| 24 | Steve Jr. Lesak | 3 | Son | — | Illinois |
| 25 | Spurlin Gurdy | 31 | Head | Truck Mechanic | Kentucky |
| 26 | Elsie Gurdy | 30 | Wife | — | England |
| 27 | Lyda Gurdy | None | Harry | 40 | No 8 |
| 28 | Peter Murphy | 54 | Head | Janitor | Illinois |
| 29 | Helen Murphy | 52 | Wife | — | Indiana |
| 30 | Dorothy Murphy THIS PERSON | 28 | Daughter | Candy-Helper | Illinois |
| 31 | Joseph Murphy | 20 | Son | Packer | Illinois |
| 32 | Jane Murphy | 12 | Son | — | Illinois |
| 33 | Donald Young | 8 | Grandson | — | Illinois |
| 34 | Daniel Sullivan | 47 | Head | Tele-Letter Helper | Rhode Island |
| 35 | Katherine Sullivan | 46 | Wife | Chief Operator | Ohio |
| 36 | Daniel Sullivan | 25 | Son | Waiter | Illinois |
| 37 | John Pappadakis | 39 | Head | Chef | Turkey |
| 38 | Helen Pappadakis | 25 | Wife | — | Illinois |
| 39 | Constantine Pappadakis | 5 | Son | — | Illinois |
Pedigree Summary
Dorothy + 2 siblings
Gen 1 · 4 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)