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John Duggan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this John Duggan across the 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Duggan |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Edina Village |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Occupation | St Clerk |
| Industry | Packing House |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 208 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | St Clerk |
| Township / Ward | Edina Village |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alma Karek | Other | — | 30 | ~1910 |
| William Duggan | Son | — | 16 | ~1924 |
| Kathleen Duggan | Daughter | — | 10 | ~1930 |
| John Duggan | Head | — | 60 | ~1880 |
| Richard Duggan | Son | — | 18 | ~1922 |
| Mary Duggan | Spouse | — | 51 | ~1889 |
| John Duggan | Son | — | 20 | ~1920 |
| Mary Duggan | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Hennepin, Minnesota
Son, age 10
Hennepin, Minnesota · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Son, age 20
Hennepin-County, Minnesota · implied b. ~1920 — 8 household members
| Surname | Duggan |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Edina Village |
| 1935 Residence (County) | Hennepin |
| Occupation | St Clerk |
| Industry | Packing House |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 208 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| 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 Duggan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Duggan
Son · 1940 · age 20 · b. ~1920 · Minnesota
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Sibling
William Duggan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Duggan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Duggan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Duggan
Sibling · 1940 · age 10
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 — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01924-00905)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emma Gunderson | 43 | Wife | — | Minnesota |
| 42 | Bernard Gunderson | 14 | Son | — | Minnesota |
| 43 | Doris Gunderson | 12 | Daughter | — | Minnesota |
| 44 | Norman Gunderson | 10 | Son | — | Minnesota |
| 45 | George Gunderson | 6 | Son | — | Minnesota |
| 46 | Marjorie Gunderson | 3 | Daughter | — | Minnesota |
| 47 | Forrest Peters | 49 | Head | Yardmaster | Pennsylvania |
| 48 | Elsie Peters | 49 | Wife | — | Pennsylvania |
| 49 | Frank Natale | 52 | Head | Farmer | Italy |
| 50 | Jenny Natale | 47 | Wife | — | New York |
| 51 | Frank Jr. Natale | 25 | Son | Delivery Truck Driver | Minnesota |
| 52 | Joseph Natale | 20 | Son | New Worker | Minnesota |
| 53 | Mary Natale | 22 | Daughter | Egg Breaker | Minnesota |
| 54 | Soren Jensen | 77 | Head | — | Sweden |
| 55 | Sadie Jensen | 48 | Daughter | — | Minnesota |
| 56 | Raymond Jensen | 42 | Son | Farmer | Minnesota |
| 57 | Louis Thompson | 51 | Head | Farmer | Denmark |
| 58 | Anna X Thompson | 38 | Wife | — | Denmark |
| 59 | Edith Thompson | 10 | Daughter | — | Minnesota |
| 60 | Lily Thompson | 8 | Daughter | — | Minnesota |
| 61 | Meta Thompson | 6 | Daughter | — | Minnesota |
| 62 | Paul Thompson | 4 | Son | — | Minnesota |
| 63 | Cino Meki | 33 | Hired hand | Farmhand | Minnesota |
| 64 | Donald Brooks | 16 | Hired hand | Farmhand | Minnesota |
| 65 | Gustaf Olson | 65 | Head | Storekeeper | Sweden |
| 66 | Martha Olson | 54 | Wife | — | Germany |
| 67 | Laura Foster | 20 | Lodger | Clerk | Minnesota |
| 68 | Harold Foster | 1 | Lodger | — | Minnesota |
| 69 | Anton Amundson | 22 | Head | Delivery Truck Driver | Minnesota |
| 70 | Lucille Amundson | 24 | Wife | Inspector | Minnesota |
| 71 | John J. Duggan | 60 | Head | Farmer | Minnesota |
| 72 | Mary Duggan | 51 | Wife | — | Minnesota |
| 73 | John Jr. Duggan THIS PERSON | 20 | Son | St Clerk | Minnesota |
| 74 | Richard Duggan | 18 | Son | — | Minnesota |
| 75 | William Duggan | 16 | Son | — | Minnesota |
| 76 | Mary Jane Duggan | 13 | Daughter | — | Minnesota |
| 77 | Kathleen Duggan | 10 | Daughter | — | Minnesota |
| 78 | Alma Karek | 30 | Housekeeper | Housekeeper | Canada-French |
| 79 | Archibald Butter | 55 | Head | Dentist | Illinois |
Related Census Records
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)