RC
Robert Cunningham — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Cunningham across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Andrew & Robert — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Cunningham |
| Given Name | Robert T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Promotion Manager |
| Industry | Hospital Service |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 4100 |
| Highest Grade | C 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Promotion Manager |
| Township / Ward | Glencoe |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Cunningham | Head | — | 31 | ~1909 |
| Dennis Cunningham | Son | — | 4 | ~1936 |
| Deborah Cunningham | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Occupation | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 20
Cook, Illinois · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Robert M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 31
Cook-County, Illinois · implied b. ~1909 — 3 household members
| Surname | Cunningham |
| Given Name | Robert T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Promotion Manager |
| Industry | Hospital Service |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 4100 |
| Highest Grade | C 4 |
| 1935 Residence | Illinois |
| 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 Cunningham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Cunningham (~0.92 confidence) and father Robert Cunningham (~0.92 confidence) and mother Beda Cunningham (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Cunningham
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Robert Cunningham
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Beda Cunningham
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Cunningham
Head · 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
40 people indexed on this census page (nara:1940:m-t0627-00783-00310)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Hannah Penn | 36 | Servant | Housemaid | Virginia |
| 42 | William J. Corbett | 32 | Head | Investment | Illinois |
| 43 | Mary Corbett | 33 | Wife | — | Illinois |
| 44 | William Corbett | 9 | Son | — | Illinois |
| 45 | John Corbett | 6 | Son | — | Illinois |
| 46 | Clark Van Arsdell | 34 | Houseman | Houseman | Wisconsin |
| 47 | Flora Van Arsdell | 28 | Cook | Housemaid | Wisconsin |
| 48 | Rufus Fordyce | 55 | Head | Executive | West Virginia |
| 49 | Edna Fordyce | 52 | Wife | — | Pennsylvania |
| 50 | Mary Novak | 26 | Servant | Housemaid | Illinois |
| 51 | Edwin H. Cassels | 64 | Head | Lawyer | Wisconsin |
| 52 | May Cassels | 61 | Wife | — | Wisconsin |
| 53 | Edwin Cassels | 31 | Son | Lawyer | Illinois |
| 54 | Elizabeth Cassels | 24 | Daughter | Librarian | Illinois |
| 55 | Mariette Winship | 33 | Daughter | — | Illinois |
| 56 | Mary Elizabeth Winship | 6 | Granddaughter | — | England |
| 57 | Christine Winship | 25 | Housemaid | Housemaid | Pennsylvania |
| 58 | Lucille Kaufmann | 21 | Cook | Cook | Illinois |
| 59 | Robert P. Fletcher | 41 | Head | President | Delaware |
| 60 | Elizabeth H. Fletcher | 38 | Wife | — | Maryland |
| 61 | Robert P. Jr. Fletcher | 14 | Son | — | Delaware |
| 62 | Daniel H. Fletcher | 11 | Son | — | Delaware |
| 63 | James C. Fletcher | 7 | Son | — | Delaware |
| 64 | Arthur Wilborn | 35 | Houseman | Houseman | Louisiana |
| 65 | Minnie Wilborn | 28 | Cook | Cook | Arkansas |
| 66 | Henry T. Smith | 76 | Head | Treasurer | Illinois |
| 67 | Gertrude Smith | 67 | Wife | — | Wisconsin |
| 68 | Hecha Hagberg | 50 | Servant | Housemaid | Minnesota |
| 69 | Richard M. Sherwood | 36 | Head | Sales Engineer | Ohio |
| 70 | Mary B. Sherwood | 30 | Wife | — | Illinois |
| 71 | Mary Clyde Sherwood | 9 | Daughter | — | Ohio |
| 72 | Cynthia Sherwood | 7 | Daughter | — | Ohio |
| 73 | Susan Sherwood | 4 | Daughter | — | Illinois |
| 74 | K. Reed Frederic | 69 | Head | Broker | Illinois |
| 75 | Edna Frederic | 59 | Wife | — | Illinois |
| 76 | Milancie Frederic | 22 | Daughter | — | Illinois |
| 77 | Edna Frederic | 20 | Daughter | — | Illinois |
| 78 | Robert T. Cunningham THIS PERSON | 31 | Head | Promotion Manager | Illinois |
| 79 | Deborah Cunningham | 31 | Wife | — | Michigan |
| 80 | Dennis Cunningham | 4 | Son | — | Illinois |
Pedigree Summary
Robert
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)