JF
John Flanagan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Iowa
Our Model Tree links this John Flanagan across the 1920, 1930 and 1940 US Censuses in Delaware-County, Iowa (XGBoost, ~Confirmed), with identified parents Patrick & Margaret — first a son (b.~1878), then head of a 4-person household.
Age 62
b. ~1878
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Iowa |
| Surname | Flanagan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Hazel Green twp. |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Carpenter |
| Industry | own business |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Carpenter |
| Township / Ward | Hazel Green Twp |
| Est. Birth Year | ~1878 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Edward Corley | Son | — | 26 | ~1914 |
| John Flanagan | Son | — | 62 | ~1878 |
| Mary Corley | Daughter | — | 56 | ~1884 |
| Margaret Flanagan | Head | — | 86 | ~1854 |
Census Appearances
1920
Delaware, Iowa
Son, age 41
Delaware, Iowa · implied b. ~1879 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flannagan |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Delaware, Iowa
Son, age 52
Delaware, Iowa · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flannagan |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Iowa |
| Occupation | Labourer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Delaware-County, Iowa
Son, age 62
Delaware-County, Iowa · implied b. ~1878 — 4 household members
| Surname | Flanagan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Hazel Green twp. |
| 1935 Residence (County) | Delaware |
| Occupation | Carpenter |
| Industry | own business |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Flanagan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Flannagan (~0.92 confidence) and mother Margaret Flanagan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Flannagan
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Margaret Flanagan
b. ~1854
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Flanagan
Son · 1940 · age 62 · b. ~1878 · Iowa
★ You are viewing this record
Sibling
Edward Corley
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Corley
Sibling · 1940 · age 56
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 — Delaware-County, Iowa
Open full size
1940 US Federal Census — Delaware-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01155-00331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Mahoney | 42 | daughter | House Work | Iowa |
| 2 | Nellie Mahoney | 46 | daughter | House Work | Iowa |
| 3 | Joseph Mahoney | 44 | son | Farming | Iowa |
| 4 | Lester Wilson | 23 | hired hand | Farm Hand | Iowa |
| 5 | Earl A. Drummy | 58 | head | Farming | Iowa |
| 6 | Harriet Drummy | 48 | wife | House Work | Iowa |
| 7 | William Joseph Drummy | 22 | son | Farming | Iowa |
| 8 | Phil Beeman | 27 | hired hand | Farm Hand | Iowa |
| 9 | Harry V. Sullivan | 38 | head | Farming | Iowa |
| 10 | Clara May Sullivan | 34 | wife | House Work | Iowa |
| 11 | Margaret Jeanette Sullivan | 6 | daughter | — | Iowa |
| 12 | Harold Raymond Sullivan | 2 | son | — | Iowa |
| 13 | Martin Bentley | 19 | hired hand | Farm Hand | Iowa |
| 14 | John F. Sheppard | 57 | head | Farming | Iowa |
| 15 | Carrie Sheppard | 45 | wife | House Work | Iowa |
| 16 | Jean Sheppard | 16 | daughter | School Student | Iowa |
| 17 | Walter Sheppard | 8 | son | — | Iowa |
| 18 | Harold Supple | 25 | hired hand | Farm Hand | Iowa |
| 19 | Ezra Aldrich | 62 | head | Farming | Iowa |
| 20 | Clara Aldrich | 57 | wife | House Work | Iowa |
| 21 | Earl Aldrich | 18 | son | Farming | Iowa |
| 22 | Albert V. Hill | 40 | head | Farming | Iowa |
| 23 | Hazel Hill | 38 | wife | House Work | Iowa |
| 24 | John Hill | 17 | son | School Student | Iowa |
| 25 | Albert Jr. Hill | 14 | son | School Student | Iowa |
| 26 | Richard Hill | 10 | son | — | Iowa |
| 27 | Yvonne Hill | 7 | daughter | — | Iowa |
| 28 | Charles Cook | 41 | hired hand | Hired Hand | Iowa |
| 29 | Marie Connelly | 17 | servant | House Work | Iowa |
| 30 | Margaret Flanagan | 86 | head | House Work | Iowa |
| 31 | John Flanagan THIS PERSON | 62 | son | Carpenter | Iowa |
| 32 | Mary Corley | 56 | daughter | Housework | Iowa |
| 33 | Edward Corley | 26 | son | Farming | Iowa |
| 34 | Joseph Q. Quint | 45 | head | Farming | Iowa |
| 35 | Margaret Quint | 40 | wife | House Work | Iowa |
| 36 | Lawrence Quint | 18 | son | Farming | Iowa |
| 37 | Clarence Quint | 16 | son | Farming | Iowa |
| 38 | Janette Quint | 14 | daughter | School Student | Iowa |
| 39 | Mary Quint | 12 | daughter | — | Iowa |
| 40 | Sylvester Quint | 9 | son | — | Iowa |
Pedigree Summary
John + 2 siblings
Gen 1 · 2 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)