JQ
John Quigley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Quigley across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Quigley |
| Given Name | John H. |
| 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 | |
| Occupation | New worker Salesman |
| Industry | Real Estate |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 276 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | New Worker Salesman |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Daniel Quigley | Son | — | 19 | ~1921 |
| M Quigley | Son | — | 15 | ~1925 |
| Bernard Quigley | Son | — | 13 | ~1927 |
| John Quigley | Son | — | 21 | ~1919 |
| Robert Quigley | Son | — | 18 | ~1922 |
| Madeline Quigley | Spouse | — | 50 | ~1890 |
| Thomas Quigley | Son | — | 11 | ~1929 |
| Rose Quigley | Daughter | — | 17 | ~1923 |
| Francis Quigley | Son | — | 8 | ~1932 |
| John Quigley | Head | — | 48 | ~1892 |
Census Appearances
1930
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quigley |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Ohio |
| 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 — 10 household members
| Surname | Quigley |
| Given Name | John H. |
| 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 |
| Occupation | New worker Salesman |
| Industry | Real Estate |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 276 |
| Highest Grade | C 2 |
| 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 John Quigley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Quigley
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Bernard Quigley
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Quigley
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Quigley
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Quigley
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
M Quigley
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Quigley
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Quigley
Sibling · 1940 · age 17
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-t0627-00935-00238)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lura Nelson | 52 | Lodger | Waitress | Minnesota |
| 42 | Robert D. Wiggert | 28 | Head | First Sales | Pennsylvania |
| 43 | Helen E. Wiggert | 25 | Wife | H | Pennsylvania |
| 44 | R. P. Jr. Wiggert | 4 | Son | — | Indiana |
| 45 | Susan H. Wiggert | 1 | Daughter | — | Illinois |
| 46 | Ella May Noble | 60 | Head | H | Ohio |
| 47 | Rose Lanton | 60 | Lodger | U | Wisconsin |
| 48 | Ralph Linnaen | 45 | Lodger | Truck Driver | Illinois |
| 49 | Margaret Linnaen | 46 | Lodger | H | Illinois |
| 50 | Bert Wright | 50 | Lodger | Barber | Indiana |
| 51 | John T. Quigley | 48 | Head | Real Estate Sales | Wisconsin |
| 52 | Madeline Quigley | 50 | Wife | H | Canada Eng |
| 53 | John H. Quigley THIS PERSON | 21 | Son | New Worker Salesman | Illinois |
| 54 | Daniel S. Quigley | 19 | Son | New Worker Landscape | Illinois |
| 55 | Robert J. Quigley | 18 | Son | Clerk | Illinois |
| 56 | Rose Mary (Ab) Quigley | 17 | Daughter | S | Illinois |
| 57 | M. Patrick Quigley | 15 | Son | S | Illinois |
| 58 | Bernard H. Quigley | 13 | Son | S | Illinois |
| 59 | Thomas M. Quigley | 11 | Son | S | Illinois |
| 60 | Francis X. Quigley | 8 | Son | S | Illinois |
| 61 | Hans P. Peterson | 75 | Head | Ot | Denmark |
| 62 | Marion Peterson | 70 | Wife | H | Denmark |
| 63 | Chas. D. Connell | 61 | Head | Sales Mgr | Illinois |
| 64 | Goldie May Connell | 52 | Wife | Ot | Iowa |
| 65 | Olive M. Connell | 24 | Daughter | 40 | Illinois |
| 66 | Ann P. Costello | 62 | Head | H | Ireland Free |
| 67 | Mary Costello | 26 | Daughter | Clerk | Illinois |
| 68 | Georgia Kababick | 52 | Lodger | 27 | Illinois |
| 69 | Alden Mcleod | 47 | Lodger | Salesman | Canada |
| 70 | Roger Mcelhiney | 30 | Head | Salesman | Illinois |
| 71 | Mary E. Mcelhiney | 30 | Wife | H | Nebraska |
| 72 | Joan Mcelhiney | 5 | Daughter | S | Illinois |
| 73 | Carol Ann Mcelhiney | 1 | Daughter | — | Illinois |
| 74 | Peter Vreton | 36 | Head | Salesman | Illinois |
| 75 | Genevieve Vreton | 33 | Wife | H | Illinois |
| 76 | James Vreton | 2 | Son | — | Illinois |
| 77 | April D. Campbell | 30 | Head | Chief Clerk | Illinois |
| 78 | Catherine Campbell | 60 | Mother | H | Mississippi |
| 79 | George Twomey | 27 | Lodger | 32 | Illinois |
| 80 | Mrs. Twomey | 45 | Lodger | U | Illinois |
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)