TF
Thomas Flynn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Madison-County, Illinois
Our Model Tree links this Thomas Flynn across the 1920, 1930 and 1940 US Censuses in Madison-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Illinois |
| Surname | Flynn |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Alton City |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Laborer |
| Industry | Glass Co |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 1000 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Alton 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Flynn | Head | — | 51 | ~1889 |
| H Barclay | Other | — | 85 | ~1855 |
| Thomas Flynn | Son | — | 28 | ~1912 |
| Mary Flynn | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Madison, Illinois
Son, age 8
Madison, Illinois · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Madison, Illinois
Son, age 18
Madison, Illinois · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flynn |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | sawer |
| Industry | box shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Madison-County, Illinois
Son, age 28
Madison-County, Illinois · implied b. ~1912 — 4 household members
| Surname | Flynn |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Alton City |
| 1935 Residence (County) | Madison |
| Occupation | Laborer |
| Industry | Glass Co |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 1000 |
| Highest Grade | 7 |
| 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 Thomas Flynn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Flynn (~0.92 confidence) and mother Mary Flynn (~0.92 confidence) and father Thomas Flynn (~0.92 confidence) and mother Mary Flynn (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Flynn
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mary Flynn
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Thomas Flynn
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Flynn
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Flynn
Son · 1940 · age 28 · b. ~1912 · 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 — Madison-County, Illinois
Open full size
1940 US Federal Census — Madison-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00848-00728)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eugene Caley | 34 | Head | Operator | Illinois |
| 42 | Gillie Caley | 34 | Wife | — | Illinois |
| 43 | Thomas M. Grigsby | 30 | Head | Office Mgr | Illinois |
| 44 | Mildred Grigsby | 26 | Wife | — | Illinois |
| 45 | Catherine Grigsby | 66 | Mother | — | Illinois |
| 46 | William Grigsby | 26 | Brother | Laborer | Illinois |
| 47 | Bryan Henderson | 35 | Head | Mold Maker | Illinois |
| 48 | Catherine Henderson | 29 | Wife | — | Illinois |
| 49 | Phyllis Henderson | 13 | Daughter | — | Illinois |
| 50 | Harold Henderson | 9 | Son | — | Illinois |
| 51 | Bobbie Henderson | 5 | Son | — | Illinois |
| 52 | Robert D. West | 44 | Head | Bagger | Kentucky |
| 53 | Bessie West | 31 | Wife | — | Kentucky |
| 54 | Virginia West | 11 | Daughter | — | Illinois |
| 55 | Jessie Sanders | 32 | Head | Contractor | Kentucky |
| 56 | Hazel Sanders | 30 | Wife | — | Kentucky |
| 57 | James R. Sanders | 9 | Son | — | Kentucky |
| 58 | Betty Jo Sanders | 6 | Daughter | — | Kentucky |
| 59 | Jessie L. Jr. Sanders | 1 | Son | — | Kentucky |
| 60 | Martha Clark | 70 | Head | — | Illinois |
| 61 | Clarence Crawford | 51 | Son | — | Illinois |
| 62 | Helen Davis | 41 | Daughter | House Work | Illinois |
| 63 | Esther Davis | 20 | Niece | House Work | Illinois |
| 64 | Loyd Davis | 19 | Nephew | — | Illinois |
| 65 | Henry Graber | 59 | Head | Contractor | Illinois |
| 66 | Clara Graber | 48 | Wife | — | Indiana |
| 67 | Henry Graber | 10 | Son | — | Illinois |
| 68 | William Halstenberg | 51 | Head | Baker | Illinois |
| 69 | Luella Halstenberg | 45 | Wife | — | Illinois |
| 70 | Mary Lou Halstenberg | 10 | Daughter | — | Illinois |
| 71 | Theodore Krause | 50 | Head | Laborer | Illinois |
| 72 | Magdalina Krause | 47 | Wife | Ironer | Illinois |
| 73 | Thomas Flynn | 51 | Head | Watchman | Illinois |
| 74 | Mary E. Flynn | 47 | Wife | — | Missouri |
| 75 | Thomas Flynn THIS PERSON | 28 | Son | Laborer | Illinois |
| 76 | H. B. Barclay | 85 | Roomer | — | Illinois |
| 77 | Richard D. Alexander | 52 | Head | Butcher | Illinois |
| 78 | Lillian Mae Alexander | 57 | Wife | — | Illinois |
| 79 | Charles R. Alexander | 24 | Son | Manager | Illinois |
| 80 | Mary L. Alexander | 20 | Daughter | Office Work | Illinois |
Pedigree Summary
Thomas
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)