RM
Robert Murray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Murray across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Murray |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Anne Murray | Daughter | — | 28 | ~1912 |
| Kathleen Murray | Daughter | — | 24 | ~1916 |
| Marion Murray | Daughter | — | 29 | ~1911 |
| Robert Murray | Son | — | 21 | ~1919 |
| Mary Murray | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murray |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murray |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 21
Cook-County, Illinois · implied b. ~1919 — 5 household members
| Surname | Murray |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Hours Worked | 6 |
| Income (1939) | 0 |
| 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 Robert Murray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Murray (~0.92 confidence) and father Patrick Murray (~0.92 confidence) and mother Mary Murray (~0.92 confidence) and mother Mary Murray (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Murray
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Patrick Murray
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Mary Murray
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Murray
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Murray
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Kathleen Murray
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Murray
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Murray
Sibling · 1940 · age 29
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
40 people indexed on this census page (nara:1940:m-t0627-01016-00481)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Murray | 53 | Wife | — | Irish Free State |
| 42 | Marion Murray | 29 | Daughter | Stenographer | Illinois |
| 43 | Anne Murray | 28 | Daughter | Stenographer | Illinois |
| 44 | Kathleen Murray | 24 | Daughter | Switch Board | Illinois |
| 45 | Robert Murray THIS PERSON | 21 | Son | — | Illinois |
| 46 | Raymond Posschl | 31 | Head | Policeman | Illinois |
| 47 | Ellen Posschl | 28 | Wife | — | Illinois |
| 48 | Darline Posschl | 5 | Daughter | — | Illinois |
| 49 | Herman Boetel | 45 | Head | Electrician | Germany |
| 50 | Meta Boetel | 36 | Wife | — | Germany |
| 51 | Herman Boetel | 9 | Son | — | Illinois |
| 52 | Mary Ann Boetel | 7 | Daughter | — | Illinois |
| 53 | Edward Thorson | 59 | Head | Collector | Illinois |
| 54 | Anna Thorson | 54 | Wife | — | Illinois |
| 55 | Joseph Gellaine | 34 | Head | Electrical Engineer | Illinois |
| 56 | Lois Gellaine | 27 | Wife | Stenographer | Illinois |
| 57 | John Toomey | 32 | Head | Policeman | Illinois |
| 58 | Mary Toomey | 25 | Wife | — | Illinois |
| 59 | John Jr Toomey | 1 | Son | — | Illinois |
| 60 | Mathieu Grethen | 42 | Head | Lithographer | Luxemburg |
| 61 | Emma Grethen | 30 | Wife | — | Illinois |
| 62 | Gerald Grethen | 3 | Son | — | Illinois |
| 63 | John Anderson | 48 | Head | Motor Man | Illinois |
| 64 | Florence Anderson | 34 | Wife | — | Illinois |
| 65 | John Anderson | 8 | Son | — | Illinois |
| 66 | Edward Kitchen | 63 | Head | Electrician | Illinois |
| 67 | Anna M Kitchen | 61 | Wife | — | Germany |
| 68 | Milton Gibbs | 26 | Head | Shipping Clerk | Michigan |
| 69 | Arline Gibbs | 26 | Wife | — | Illinois |
| 70 | Milton Gibbs | 4 | Son | — | Illinois |
| 71 | Oscar Melis | 58 | Head | Correspondent | Michigan |
| 72 | Mary Melis | 59 | Wife | — | Illinois |
| 73 | Russell Carlyle | 55 | Head | Electric Mechanic | Kansas |
| 74 | Marie Carlyle | 48 | Wife | — | Illinois |
| 75 | Walter Anderson | 34 | Head | Stock Chaser | Illinois |
| 76 | Dorothy Anderson | 32 | Wife | Section Plan Clerk | Illinois |
| 77 | Walter Bitek | 28 | Head | Radio Eng | Illinois |
| 78 | Mary Bitek | 27 | Wife | Fireman | Illinois |
| 79 | Robert Bitek | 5 | Son | — | Illinois |
| 80 | — | None | — | — | — |
Pedigree Summary
Robert + 3 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)