JN
John Nolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this John Nolan across the 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1907), then head of a 9-person household.
Age 33
b. ~1907
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Clerk |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 1400 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Clerk |
| Township / Ward | Springfield |
| Est. Birth Year | ~1907 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Loretta Nolan | Daughter | — | 31 | ~1909 |
| Catherine Nolan | Daughter | — | 35 | ~1905 |
| Ruth Nolan | Daughter | — | 20 | ~1920 |
| Marie Nolan | Daughter | — | 24 | ~1916 |
| Henry Nolan | Head | — | 64 | ~1876 |
| Thomas Nolan | Son | — | 29 | ~1911 |
| John Nolan | Son | — | 33 | ~1907 |
| James Nolan | Son | — | 22 | ~1918 |
| Leo Nolan | Son | — | 26 | ~1914 |
Census Appearances
1930
Sangamon, Illinois
Son, age 23
Sangamon, Illinois · implied b. ~1907 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | Foreman |
| Industry | Shoe Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Sangamon-County, Illinois
Son, age 33
Sangamon-County, Illinois · implied b. ~1907 — 9 household members
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Occupation | Clerk |
| Industry | Wholesale Grocery |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 1400 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Nolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Nolan
Son · 1940 · age 33 · b. ~1907 · Illinois
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Sibling
Leo Nolan
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Nolan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Nolan
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Nolan
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Nolan
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Nolan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Nolan
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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00884-00296)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | B Flora | 27 | Lodger | Dental Assistant | Illinois |
| 42 | John Hughes | 61 | Lodger | Digger | Illinois |
| 43 | Rowena Kirkwood | 29 | Lodger | Nurse (Registered) | Illinois |
| 44 | Dorothy Viera | 28 | Wife | Cashier | Iowa |
| 45 | Orville C Potterff | 63 | Head | — | Indiana |
| 46 | Jennie E Potterff | 61 | Wife | — | Illinois |
| 47 | Kenneth Potterff | 28 | Son | Punch Press Operator | Illinois |
| 48 | Grace O'Connell | 73 | Head | — | Illinois |
| 49 | George Smith | 53 | Head | Policeman | Virginia |
| 50 | Janet Smith | 51 | Wife | — | Oklahoma |
| 51 | — | None | — | — | — |
| 52 | Ray J Bebout | 33 | Head | Machinist | Illinois |
| 53 | Addie Bebout | 35 | Wife | — | Illinois |
| 54 | — | None | — | — | — |
| 55 | Mildred Irvine | 35 | Lodger | Saleslady | Illinois |
| 56 | Margaret Murray | 70 | Head | Timer | Illinois |
| 57 | Josephine Murray | 60 | Sister | — | Illinois |
| 58 | Henry C Nolan | 64 | Head | — | Missouri |
| 59 | Catherine Nolan | 35 | Daughter | Clerk Clerk | Missouri |
| 60 | John Nolan THIS PERSON | 33 | Son | Clerk | Missouri |
| 61 | Loretta Nolan | 31 | Daughter | Blue Print Assembler | Missouri |
| 62 | Thomas Nolan | 29 | Son | Clerk Clerk | Missouri |
| 63 | Leo Nolan | 26 | Son | Investigator | Missouri |
| 64 | Marie Nolan | 24 | Daughter | — | Missouri |
| 65 | James Nolan | 22 | Son | Attendant | Missouri |
| 66 | Ruth Nolan | 20 | Daughter | Clerk | Missouri |
| 67 | William C Fry | 45 | Head | Plumber | Illinois |
| 68 | Mary L Fry | 42 | Wife | — | Illinois |
| 69 | William Jr Fry | 19 | Son | — | Illinois |
| 70 | Georg M Gariet | 33 | Head | Coal Dealer | Illinois |
| 71 | Alice L Gariet | 33 | Wife | — | Illinois |
| 72 | Edwin Highend | 36 | Head | Fireman | England |
| 73 | Pauline Highend | 30 | Wife | — | Illinois |
| 74 | Richard Highend | 10 | Son | — | Illinois |
| 75 | Betty Highend | 9 | Daughter | — | Illinois |
| 76 | Lucile Highend | 7 | Daughter | — | Illinois |
| 77 | Edwin Jr Highend | 2 | Son | — | Illinois |
| 78 | William Stewart | 30 | Head | Digger | Illinois |
| 79 | Josephine Stewart | 30 | Wife | Spotter | Italy |
| 80 | Christine Scott | 22 | Head | Housemaid | Illinois |
Related Census Records
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)