JM
John Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Minnesota
Our Model Tree links this John Mcdonough across the 1930 and 1940 US Censuses in Washington-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Minnesota |
| Surname | McDonough |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Stillwater City |
| Additional Details | |
| Occupation | Student |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Student |
| Township / Ward | Stillwater City |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Rose Mcdonough | Daughter | — | 20 | ~1920 |
| Margaret Mcdonough | Daughter | — | 14 | ~1926 |
| Gertrude Mcdonough | Daughter | — | 23 | ~1917 |
| Richard Mcdonough | Head | — | 57 | ~1883 |
| Robert Mcdonough | Son | — | 11 | ~1929 |
| John Mcdonough | Son | — | 17 | ~1923 |
| Clevie Mcdonough | Spouse | — | 56 | ~1884 |
Census Appearances
1930
Washington, Minnesota
Son, age 7
Washington, Minnesota · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Washington-County, Minnesota
Son, age 17
Washington-County, Minnesota · implied b. ~1923 — 7 household members
| Surname | McDonough |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Stillwater City |
| Occupation | Student |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 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 Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcdonough
Son · 1940 · age 17 · b. ~1923 · Minnesota
★ You are viewing this record
Sibling
Rose Mcdonough
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcdonough
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Mcdonough
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcdonough
Sibling · 1940 · age 14
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 — Washington-County, Minnesota
Open full size
1940 US Federal Census — Washington-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01967-00552)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Novotny | 32 | Head | Owner | North Dakota |
| 2 | Naomi Novotny | 32 | Wife | — | Minnesota |
| 3 | Dorothy Novotny | 10 | Daughter | — | Wisconsin |
| 4 | Dick Novotny | 8 | Son | — | Wisconsin |
| 5 | Sherman E. Iverson | 27 | Head | Social Service | Minnesota |
| 6 | Myrtle Iverson | 32 | Wife | — | Minnesota |
| 7 | Bernard Connors | 50 | Head | Salesman | Minnesota |
| 8 | Evelyn Connors | 46 | Wife | — | Minnesota |
| 9 | Joanne Connors | 22 | Daughter | Teacher | Minnesota |
| 10 | Rilleen Connors | 20 | Daughter | Stenographer | Minnesota |
| 11 | Patricia Connors | 19 | Daughter | Stenographer | Minnesota |
| 12 | Margaret Ann Connors | 17 | Daughter | Student | Minnesota |
| 13 | Jean Connors | 14 | Daughter | Student | Minnesota |
| 14 | Mary Connors | 12 | Daughter | Student | Minnesota |
| 15 | Patrick Connors | 8 | Son | Student | Minnesota |
| 16 | Mr. Lowell Cadd | 38 | Head | Baker | Iowa |
| 17 | Mrs. Irene Cadd | 40 | Wife | Clerk | Wisconsin |
| 18 | Barbara Cadd | 12 | Daughter | Student | Iowa |
| 19 | Duane Cadd | 8 | Son | Student | Iowa |
| 20 | David Cadd | 3 | Son | — | Wisconsin |
| 21 | Mrs. Alice Cadd | 57 | Mother | Housekeeper | Iowa |
| 22 | Delores Disbrow | 12 | G. Daughter | — | Iowa |
| 23 | Alice Disbrow | 6 | G. Daughter | — | Minnesota |
| 24 | Miss Anna Fitzgerald | 83 | Head | — | New York |
| 25 | Lawrence Pozzini | 29 | Head | Highway Construction | Minnesota |
| 26 | Kathryn Pozzini | 29 | Wife | — | Minnesota |
| 27 | Mary Pozzini | 1 | Daughter | — | Minnesota |
| 28 | Margaret Mrs. Denham | 63 | Mother | Housewife | Minnesota |
| 29 | (Blank) (Blank) | None | (blank) | (Blank) | (blank) |
| 30 | Richard Mcdonough | 57 | Head | — | Minnesota |
| 31 | Clevie Mcdonough | 56 | Wife | — | Minnesota |
| 32 | Gertrude Mcdonough | 23 | Daughter | Stenographer | Minnesota |
| 33 | Rose Mcdonough | 20 | Daughter | Housework | Minnesota |
| 34 | John Mcdonough THIS PERSON | 17 | Son | Student | Minnesota |
| 35 | Margaret Ann Mcdonough | 14 | Daughter | Student | Minnesota |
| 36 | Robert Mcdonough | 11 | Son | Student | Minnesota |
| 37 | Mrs. Theresa Whalen | 57 | Head | — | Minnesota |
| 38 | Mrs. Mathilda Stadum | 76 | Head | — | Sweden |
| 39 | Esther Stadum | 51 | Daughter | — | Minnesota |
| 40 | Elmer Stadum | 50 | Son | 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)