JR
John Reardon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Big-Stone-County, Minnesota
Our Model Tree links this John Reardon across the 1930 and 1940 US Censuses in Big-Stone-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Big-Stone-County, Minnesota |
| Surname | Reardon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Johnson Village |
| 1935 Residence (County) | Big Stone |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Johnson Village |
| Est. Birth Year | ~1923 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Katherine Reardon | Daughter | — | 20 | ~1920 |
| John Reardon | Son | — | 17 | ~1923 |
| Frances Reardon | Spouse | — | 53 | ~1887 |
| Richard Reardon | Son | — | 16 | ~1924 |
| Constance Reardon | Daughter | — | 21 | ~1919 |
| Thomas Reardon | Head | — | 66 | ~1874 |
Census Appearances
1930
Big Stone, …
Son, age 7
Big Stone, Minnesota · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reardon |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | New York |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Big-Stone-County, Minnesota
Son, age 17
Big-Stone-County, Minnesota · implied b. ~1923 — 6 household members
| Surname | Reardon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Johnson Village |
| 1935 Residence (County) | Big Stone |
| Highest Grade | Hs 3 |
| 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 Reardon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Reardon
Son · 1940 · age 17 · b. ~1923 · Minnesota
★ You are viewing this record
Sibling
Katherine Reardon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Constance Reardon
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Reardon
Sibling · 1940 · age 16
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 — Big-Stone-County, Minnesota
Open full size
1940 US Federal Census — Big-Stone-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01907-00645)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bert Skoog | 38 | Head | Miller | Minnesota |
| 2 | Mable Skoog | 30 | Wife | — | Minnesota |
| 3 | Margaret Skoog | 12 | Daughter | — | Minnesota |
| 4 | Dorothy Skoog | 8 | Daughter | — | Minnesota |
| 5 | Ralph Meyer | 44 | Head | Grocer | Missouri |
| 6 | Alvina Meyer | 41 | Wife | — | Iowa |
| 7 | Joann Meyer | 11 | Daughter | — | South Dakota |
| 8 | Jacob V. Luchau | 30 | Head | Bus Driver | Minnesota |
| 9 | Jessie Luchau | 31 | Wife | — | Minnesota |
| 10 | Jacqueline Luchau | 9 | Daughter | — | Minnesota |
| 11 | Janice Luchau | 6 | Daughter | — | Minnesota |
| 12 | Gary Luchau | 1 | Son | — | Minnesota |
| 13 | Walter F. Andrews | 30 | Head | Laborer | Minnesota |
| 14 | Margaret Andrews | 30 | Wife | — | Minnesota |
| 15 | Cecelia Andrews | 9 | Daughter | — | Minnesota |
| 16 | Pearl Andrews | 7 | Daughter | — | Minnesota |
| 17 | Bernadine Andrews | 6 | Daughter | — | Minnesota |
| 18 | Beverly Andrews | 2 | Daughter | — | Minnesota |
| 19 | Shirley Andrews | 2 | Daughter | — | Minnesota |
| 20 | Josephine Andrews | 72 | Mother | — | Minnesota |
| 21 | John M. Geheren | 64 | Head | Grain Buyer | Minnesota |
| 22 | Lucille Geheren | 19 | Daughter | Library Assistant | Minnesota |
| 23 | Daniel Geheren | 63 | Brother | — | Minnesota |
| 24 | William Brelow | 52 | Head | Proprietor Attendant | Iowa |
| 25 | Louise Brelow | 45 | Wife | — | Iowa |
| 26 | Thomas Reardon | 66 | Head | Grain Buyer | New York |
| 27 | Frances Reardon | 53 | Wife | — | Minnesota |
| 28 | Constance Reardon | 21 | Daughter | — | Minnesota |
| 29 | Katherine Reardon | 20 | Daughter | Library Assistant | Minnesota |
| 30 | John Reardon THIS PERSON | 17 | Son | — | Minnesota |
| 31 | Richard Reardon | 16 | Son | — | Minnesota |
| 32 | Henry Quinn | 34 | Head | Tractor Driver | Minnesota |
| 33 | Mamie Quinn | 37 | Wife | — | Germany |
| 34 | David Quinn | 8 | Son | — | Minnesota |
| 35 | Elaine Quinn | 5 | Daughter | — | Minnesota |
| 36 | Edward Quinn | 4 | Son | — | Minnesota |
| 37 | John A. Thury | 48 | Head | Tavern Manager | Minnesota |
| 38 | Edstrom Theresa Thury | 39 | Sister | — | Minnesota |
| 39 | Laverne Thury | 16 | Niece | — | Minnesota |
| 40 | August Mathias | 73 | Head | — | 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)