JC
John Corcoran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dane-County, Wisconsin
Our Model Tree links this John Corcoran across the 1930 and 1940 US Censuses in Dane-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1904), then head of a 10-person household.
Age 36
b. ~1904
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dane-County, Wisconsin |
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Madison Township |
| 1935 Residence (County) | Dane |
| Additional Details | |
| Occupation | laborer |
| Industry | excavating |
| Class of Worker | PW |
| Income (1939) | 350 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Laborer |
| Township / Ward | Madison Township |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| June Corcoran | Daughter | — | 19 | ~1921 |
| Donald Corcoran | Son | — | 11 | ~1929 |
| Doris Corcoran | Daughter | — | 14 | ~1926 |
| Hazel Corcoran | Daughter | — | 9 | ~1931 |
| Bessie Corcoran | Daughter | — | 16 | ~1924 |
| James Corcoran | Son | — | 8 | ~1932 |
| Jackie Corcoran | Son | — | 18 | ~1922 |
| John Corcoran | Head | — | 36 | ~1904 |
| Harold Corcoran | Son | — | 4 | ~1936 |
| Lottie Corcoran | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Dane, Wisconsin
Son, age 27
Dane, Wisconsin · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Labour |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Dane-County, Wisconsin
Head, age 36
Dane-County, Wisconsin · implied b. ~1904 — 10 household members
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Madison Township |
| 1935 Residence (County) | Dane |
| Occupation | laborer |
| Industry | excavating |
| Class of Worker | PW |
| Income (1939) | 350 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Corcoran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Corcoran
Head · 1940 · age 36 · b. ~1904 · Wisconsin
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Dane-County, Wisconsin
Open full size
1940 US Federal Census — Dane-County, Wisconsin
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-04470-00497)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wayne Bleeker | 12 | son | — | Wisconsin |
| 42 | Arden Bleeker | 9 | son | — | Wisconsin |
| 43 | Jean Bleeker | 3 | daughter | — | Wisconsin |
| 44 | Mary Bleeker | 63 | mother | — | Wisconsin |
| 45 | Leonard Bleeker | 24 | brother | Carpenter | Wisconsin |
| 46 | Lucille Slauson | 23 | lodger | Secretary | Wisconsin |
| 47 | Gerald Billington | 35 | head | Teller | Wisconsin |
| 48 | Helen P. Billington | 33 | wife | — | Wisconsin |
| 49 | Sheila Billington | 5 | daughter | — | Wisconsin |
| 50 | Sharon Billington | 0 | daughter | — | Wisconsin |
| 51 | Vivian Karsten | 17 | lodger | 55 | Wisconsin |
| 52 | John J. Ward | 58 | head | Carpenter | Wisconsin |
| 53 | Mildred Ward | 56 | wife | — | Wisconsin |
| 54 | Floyd Pope | 31 | head | Clerk | Wisconsin |
| 55 | Dorothy Pope | 27 | wife | — | Wisconsin |
| 56 | John R. Pope | 3 | son | — | Wisconsin |
| 57 | James Pope | 1 | son | — | Wisconsin |
| 59 | Arthur G. Engler | 60 | head | Cement Foreman | Wisconsin |
| 60 | Edith Engler | 60 | wife | — | Wisconsin |
| 61 | Clarence J. Engler | 29 | son | Station Attend. | Wisconsin |
| 62 | Ray Corcoran | 45 | head | Contractor | Wisconsin |
| 63 | Margaret Corcoran | 40 | wife | — | Wisconsin |
| 64 | Kathleen Corcoran | 20 | daughter | — | Wisconsin |
| 65 | Frances Corcoran | 18 | daughter | Comptometer Op. | Wisconsin |
| 66 | John Corcoran THIS PERSON | 36 | head | Laborer | Wisconsin |
| 67 | Lottie Corcoran | 34 | wife | — | Wisconsin |
| 68 | June Corcoran | 19 | daughter | New Worker | Wisconsin |
| 69 | Jackie Corcoran | 18 | son | Laborer | Wisconsin |
| 70 | Bessie Corcoran | 16 | daughter | — | Wisconsin |
| 71 | Doris Corcoran | 14 | daughter | — | Wisconsin |
| 72 | Donald Corcoran | 11 | son | — | Wisconsin |
| 73 | Hazel Corcoran | 9 | daughter | — | Wisconsin |
| 74 | James Corcoran | 8 | son | — | Wisconsin |
| 75 | Harold Corcoran | 4 | son | — | Wisconsin |
| 76 | Charles Herrling | 68 | head | — | Germany |
| 77 | Glen Herrling | 19 | son | Dishwasher | Wisconsin |
| 78 | Fred O. Wadell | 69 | head | Farmer | Wisconsin |
| 79 | Augusta Wadell | 62 | wife | — | Germany |
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)