JC
John Corcoran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winona-County, Minnesota
Our Model Tree links this John Corcoran across the 1930 and 1940 US Censuses in Winona-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winona-County, Minnesota |
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Pleasant Hill |
| 1935 Residence (County) | Winona |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Pleasant Hill |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Corcoran | Daughter | — | 7 | ~1933 |
| John Corcoran | Son | — | 13 | ~1927 |
| Herb Corcoran | Head | — | 60 | ~1880 |
| Catherine Corcoran | Daughter | — | 19 | ~1921 |
| Terrance Corcoran | Son | — | 20 | ~1920 |
| Margaret Corcoran | Spouse | — | 44 | ~1896 |
| Elizabeth Corcoran | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Winona, Minnesota
Son, age 3
Winona, Minnesota · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Winona-County, Minnesota
Son, age 13
Winona-County, Minnesota · implied b. ~1927 — 7 household members
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Pleasant Hill |
| 1935 Residence (County) | Winona |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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.
Show:
This person
Anchor record
John Corcoran
Son · 1940 · age 13 · b. ~1927 · Minnesota
★ You are viewing this record
Sibling
Elizabeth Corcoran
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Corcoran
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Corcoran
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Terrance Corcoran
Sibling · 1940 · age 20
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 — Winona-County, Minnesota
Open full size
1940 US Federal Census — Winona-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01969-00227)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert Halverson | 24 | Hired Hand | Farm Laborer | Minnesota |
| 42 | David E. Nisbit | 63 | Head | Farmer | Minnesota |
| 43 | Biantha Nisbit | 66 | Wife | — | Minnesota |
| 44 | Leonard Kappen | 32 | Head | Farmer | Minnesota |
| 45 | Laura Kappen | 28 | Wife | — | Minnesota |
| 46 | Laverne Kappen | 7 | Son | — | Minnesota |
| 47 | Anita Kappen | 4 | Daughter | — | Wisconsin |
| 48 | Marie Kappen | 3 | Daughter | — | Wisconsin |
| 49 | Jeanne Kappen | 2 | Daughter | — | Wisconsin |
| 50 | Julius Larson | 59 | Head | Farmer | Minnesota |
| 51 | Augusta Larson | 57 | Wife | — | Minnesota |
| 52 | Lindsay Smith | 45 | Head | Farmer | Minnesota |
| 53 | Emma Smith | 41 | Wife | — | Minnesota |
| 54 | Wayne Smith | 14 | Son | Laborer | Minnesota |
| 55 | Norma Smith | 20 | Daughter | Servant | Minnesota |
| 56 | Manuel Henderson | 67 | Head | Farmer | Minnesota |
| 57 | Marion Henderson | 65 | Wife | — | Minnesota |
| 58 | Burton Henderson | 28 | Son | Farm Laborer | Minnesota |
| 59 | Helen Henderson | 21 | Daughter-in-law | — | Minnesota |
| 60 | Lansing Northrup | 76 | Head | Farmer | Minnesota |
| 61 | Ella Northrup | 59 | Wife | — | Minnesota |
| 62 | Everett Northrup | 25 | Son | Farm Laborer | Minnesota |
| 63 | Vera Northrup | 21 | Daughter-in-law | — | Minnesota |
| 64 | Dale Jenkins | 27 | Head | Farmer | Minnesota |
| 65 | Winifred Jenkins | 27 | Wife | — | Minnesota |
| 66 | Daniel Jenkins | 4 | Son | — | Minnesota |
| 67 | Darlene Jenkins | 2 | Daughter | — | Minnesota |
| 68 | Herb Corcoran | 60 | Head | Laborer | Minnesota |
| 69 | Margaret Corcoran | 44 | Wife | — | Minnesota |
| 70 | Terrance Corcoran | 20 | Son | Laborer | Minnesota |
| 71 | Catherine Corcoran | 19 | Daughter | — | Minnesota |
| 72 | Elizabeth Corcoran | 17 | Daughter | — | Minnesota |
| 73 | John Corcoran THIS PERSON | 13 | Son | — | Minnesota |
| 74 | Elizabeth Corcoran | 7 | Daughter | — | Minnesota |
| 75 | George Fairbanks | 61 | Head | Farmer | Minnesota |
| 76 | Julia Fairbanks | 59 | Wife | — | Minnesota |
| 77 | Helen Fairbanks | 27 | Daughter | — | North Dakota |
| 78 | Robert Fairbanks | 6 | Grandson | — | Minnesota |
| 79 | Wilhelmina Pagel | 70 | Head | — | Germany |
| 80 | Emil Pagel | 30 | Son | Farm Laborer | Minnesota |
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)