JW
John Whalen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allamakee-County, Iowa
Our Model Tree links this John Whalen across the 1930 and 1940 US Censuses in Allamakee-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allamakee-County, Iowa |
| Surname | Whalen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (County) | Allamakee |
| Additional Details | |
| Occupation | 20 |
| Industry | Collector |
| Class of Worker | Feed & Milling |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | 20 |
| Township / Ward | Lansing |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| John Whalen | Son | — | 20 | ~1920 |
| George Whalen | Head | — | 52 | ~1888 |
| George Whalen | Son | — | 17 | ~1923 |
| Barbara Whalen | Daughter | — | 18 | ~1922 |
| Scharlena Whalen | Daughter | — | 9 | ~1931 |
| Martha Whalen | Spouse | — | 43 | ~1897 |
| Paul Whalen | Son | — | 13 | ~1927 |
Census Appearances
1930
Allamakee, Iowa
Son, age 10
Allamakee, Iowa · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whalen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Allamakee-County, Iowa
Son, age 20
Allamakee-County, Iowa · implied b. ~1920 — 7 household members
| Surname | Whalen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (County) | Allamakee |
| Occupation | 20 |
| Industry | Collector |
| Class of Worker | Feed & Milling |
| Highest Grade | Hs 4 |
| 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 Whalen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Whalen
Son · 1940 · age 20 · b. ~1920 · Iowa
★ You are viewing this record
Sibling
Barbara Whalen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Scharlena Whalen
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Whalen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Whalen
Sibling · 1940 · age 17
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 — Allamakee-County, Iowa
Open full size
1940 US Federal Census — Allamakee-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01136-00902)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kenneth Peters | 0 | Son | — | Iowa |
| 42 | Peter X Zabidilsky | 72 | Head | — | Iowa |
| 43 | Christine Zabidilsky | 70 | Wife | — | Iowa |
| 44 | Cyril Murphy | 39 | Head | 52 | Iowa |
| 45 | Irene X Murphy | 39 | Wife | — | Iowa |
| 46 | Robert Murphy | 13 | Son | 5 | Iowa |
| 47 | Daniel Murphy | 11 | Son | — | Iowa |
| 48 | Cyril Jr Murphy | 9 | Son | — | Iowa |
| 49 | Herman Trouille | 50 | Head | 48 | Iowa |
| 50 | Magdaline Trouille | 49 | Wife | — | Iowa |
| 51 | Bernard Maus | 24 | Son-in-law | 40 | Iowa |
| 52 | Lucile Maus | 21 | Daughter | — | Iowa |
| 53 | Mary K Maus | 0 | Granddaughter | — | Iowa |
| 54 | Carl Kohlsted | 66 | Head | 40 | Iowa |
| 55 | Louise X Kohlsted | 51 | Wife | — | Iowa |
| 56 | Mary Glaser | 76 | Sister-in-law | — | Iowa |
| 57 | Anna X Bauman | 62 | Head | — | Iowa |
| 58 | John R Worth | 44 | Son | 40 | Iowa |
| 59 | James Cole | 66 | Head | — | England |
| 60 | Belle Cole | 56 | Wife | — | Iowa |
| 61 | Raymond John | 16 | Son | — | Iowa |
| 62 | George Whalen | 52 | Head | 52 | Iowa |
| 63 | Martha Whalen | 43 | Wife | 43 | Iowa |
| 64 | John Whalen THIS PERSON | 20 | Son | 20 | Iowa |
| 65 | Barbara Whalen | 18 | Daughter | — | Iowa |
| 66 | George Jr Whalen | 17 | Son | — | Iowa |
| 67 | Paul Whalen | 13 | Son | — | Iowa |
| 68 | Scharlena Whalen | 9 | Daughter | — | Iowa |
| 69 | Amelia Burge | 53 | Head | — | Iowa |
| 70 | Hilda Burge | 18 | Daughter | — | Iowa |
| 71 | Emil Burge | 61 | Son | — | Iowa |
| 72 | Elmer Billows | 28 | Lodger | — | Iowa |
| 73 | Rueben Redman | 45 | Lodger | — | Iowa |
| 74 | Marie X May | 68 | Head | — | Iowa |
| 75 | Carl X Iverson | 61 | Head | 44 | Iowa |
| 76 | Nicholas Strub | 34 | Head | 40 | Iowa |
| 77 | Marcella X Strub | 33 | Wife | — | Iowa |
| 78 | Charles Strub | 10 | Son | — | Iowa |
| 79 | Earl Strub | 8 | Son | — | Iowa |
| 80 | Daniel Strub | 6 | Son | — | Iowa |
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)