JD
James Dugan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brown-County, Wisconsin
Our Model Tree links this James Dugan across the 1930 and 1940 US Censuses in Brown-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Wisconsin |
| Surname | Dugan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Highest Grade | No 8 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Green Bay City |
| Est. Birth Year | ~1925 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Esther Dugan | Spouse | — | 34 | ~1906 |
| Francis Dugan | Head | — | 36 | ~1904 |
| James Dugan | Son | — | 15 | ~1925 |
| Arlene Dugan | Daughter | — | 17 | ~1923 |
| Mervin Dugan | Son | — | 14 | ~1926 |
| William Krieser | Other | — | 65 | ~1875 |
| Audrey Dugan | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Manitowoc, Wisconsin
Son, age 5
Manitowoc, Wisconsin · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Brown-County, Wisconsin
Son, age 15
Brown-County, Wisconsin · implied b. ~1925 — 7 household members
| Surname | Dugan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Brown |
| Highest Grade | No 8 |
| 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 James Dugan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dugan
Son · 1940 · age 15 · b. ~1925 · Wisconsin
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Sibling
Mervin Dugan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Dugan
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arlene Dugan
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 — Brown-County, Wisconsin
Open full size
1940 US Federal Census — Brown-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04460-00689)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gerald De Staercke | 3 | Son | — | Wisconsin |
| 2 | Patricia De Staercke | 1 | Daughter | — | Wisconsin |
| 3 | Carlyle Goodrich | 55 | Head | Private Homes | Illinois |
| 4 | Nellie Goodrich | 65 | Wife | — | Holland |
| 5 | Francis Goodrich | 22 | Son | Forest Project | Illinois |
| 6 | Hans Christensen | 45 | Head | Pw | Denmark |
| 7 | Mabel Christensen | 42 | Wife | — | Illinois |
| 8 | Ruth M. Christensen | 14 | Daughter | — | Wisconsin |
| 9 | Jeanne M. Christensen | 13 | Daughter | — | Wisconsin |
| 10 | John Christensen | 10 | Son | — | Wisconsin |
| 11 | Edward F. Wehmeyer | 40 | Head | Mfg. Of Road Machinery | Wisconsin |
| 12 | Pearl Wehmeyer | 35 | Wife | — | Wisconsin |
| 13 | Roger Lee Wehmeyer | 11 | Son | — | Wisconsin |
| 14 | Dorothy Mae Wehmeyer | 7 | Daughter | — | Wisconsin |
| 15 | George Steffens | 28 | Head | Roofer | Wisconsin |
| 16 | Muriel Steffens | 25 | Wife | — | Wisconsin |
| 17 | Sherman Steffens | 2 | Son | — | Wisconsin |
| 18 | Samuel Steffens | 0 | Son | — | Wisconsin |
| 19 | Anne Fonder | 62 | Head | — | Wisconsin |
| 20 | Kenneth C. Kimball | 26 | Head | Mechanic Helper | Wisconsin |
| 21 | Dorothy Kimball | 24 | Wife | — | Wisconsin |
| 22 | William Santy | 70 | Head | — | Wisconsin |
| 23 | Stella Santy | 65 | Wife | — | Wisconsin |
| 24 | Lawrence Lauger | 36 | Head | Garage | Wisconsin |
| 25 | Cecelia Lauger | 27 | Wife | Private Home | Wisconsin |
| 26 | James H. Olson | 28 | Head | Am. District Telegraph | Wisconsin |
| 27 | Nina Olson | 27 | Wife | Waitress | Wisconsin |
| 28 | Eric R. Radthe | 37 | Head | Molder | Wisconsin |
| 29 | Helen Radthe | 34 | Wife | — | Wisconsin |
| 30 | Eugene Radthe | 7 | Son | — | Wisconsin |
| 31 | Francis Dugan | 36 | Head | Coal Dock | Wisconsin |
| 32 | Esther Dugan | 34 | Wife | — | Wisconsin |
| 33 | Arlene Dugan | 17 | Daughter | — | Wisconsin |
| 34 | James Dugan THIS PERSON | 15 | Son | — | Wisconsin |
| 35 | Mervin Dugan | 14 | Son | — | Wisconsin |
| 36 | Audrey Dugan | 6 | Daughter | — | Wisconsin |
| 37 | William Krieser | 65 | Uncle | — | Wisconsin |
| 38 | Lawrence Nellis | 37 | Head | Paper Mill | Wisconsin |
| 39 | Ella Nellis | 37 | Wife | — | Wisconsin |
| 40 | Newton Steenfeldt | 35 | Head | Gasoline Station | Wisconsin |
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)