MV
Mary Vaughn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Palo-Alto-County, Iowa
Our Model Tree links this Mary Vaughn across the 1930 and 1940 US Censuses in Palo-Alto-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 11-person household.
Age 33
b. ~1907
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Palo-Alto-County, Iowa |
| Surname | Vaughn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Emmetsburg City |
| 1935 Residence (County) | Palo Alto |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Emmetsburg City |
| Est. Birth Year | ~1907 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Vaughn | Son | — | 6 | ~1934 |
| Romaine Walker | Other | — | 16 | ~1924 |
| Leonard Vaughn | Head | — | 39 | ~1901 |
| Patricia Vaughn | Daughter | — | 10 | ~1930 |
| Mary Downs | Other | — | 77 | ~1863 |
| Janice Vaughn | Daughter | — | 4 | ~1936 |
| Mary Vaughn | Spouse | — | 33 | ~1907 |
| Sherron Vaughn | Daughter | — | 2 | ~1938 |
| Shirley Vaughn | Daughter | — | 8 | ~1932 |
| James Downs | Other | — | 83 | ~1857 |
| Margaret Walker | Other | — | 14 | ~1926 |
Census Appearances
1930
Palo Alto, …
Daughter, age 23
Palo Alto, Iowa · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Vaughn |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Palo-Alto-County, Iowa
Spouse, age 33
Palo-Alto-County, Iowa · implied b. ~1907 — 11 household members
| Surname | Vaughn |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Emmetsburg City |
| 1935 Residence (County) | Palo Alto |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Mary Vaughn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Vaughn
Spouse · 1940 · age 33 · b. ~1907 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Palo-Alto-County, Iowa
Open full size
1940 US Federal Census — Palo-Alto-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01189-00076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Ryan | 40 | Head | Optometrist | Iowa |
| 42 | Catherine Ryan | 37 | Wife | — | Iowa |
| 43 | W. D. Howie | 51 | Head | Salesman | South Dakota |
| 44 | Gertrude Howie | 51 | Wife | — | Iowa |
| 45 | Beverly Howie | 11 | Daughter | — | Iowa |
| 46 | Thomas Smith | 26 | Head | Proprietor | Montana |
| 47 | Grace Smith | 24 | Wife | — | North Dakota |
| 48 | Patricia Smith | 2 | Daughter | — | Iowa |
| 49 | Lettie Corley | 41 | Head | Dish Washer | Illinois |
| 50 | Lydia Corley | 19 | Daughter | — | Iowa |
| 51 | Raymond Corley | 17 | Son | Clerk | Iowa |
| 52 | Ronald Corley | 15 | Son | Helper | Iowa |
| 53 | Melvin Corley | 12 | Daughter | — | Iowa |
| 54 | John Dannewitz | 53 | Head | Truck Driver | Iowa |
| 55 | Edna Dannewitz | 50 | Wife | — | Iowa |
| 56 | Ruth Dannewitz | 18 | Daughter | — | Iowa |
| 57 | Dean Dannewitz | 11 | Son | — | Iowa |
| 58 | Leonard Vaughn | 39 | Head | Truck Driver | Iowa |
| 59 | Mary Vaughn THIS PERSON | 33 | Wife | — | Iowa |
| 60 | Romaine Walker | 16 | Step daughter | — | Iowa |
| 61 | Margaret Walker | 14 | Step daughter | — | Iowa |
| 62 | Patricia Vaughn | 10 | Daughter | — | Iowa |
| 63 | Shirley Vaughn | 8 | Daughter | — | Iowa |
| 64 | James Vaughn | 6 | Son | — | Iowa |
| 65 | Janice Vaughn | 4 | Daughter | — | Iowa |
| 66 | Sherron Vaughn | 2 | Daughter | — | Iowa |
| 67 | James P. Downs | 83 | Father in law | — | Iowa |
| 68 | Mary Downs | 77 | Mother in law | — | Illinois |
| 69 | Cletus Meisner | 27 | Head | Proprietor | Minnesota |
| 70 | Pearl Meisner | 26 | Wife | — | Iowa |
| 71 | John Bakel | 56 | Head | Care Taker | Iowa |
| 72 | Gertrude Bakel | 46 | Wife | — | North Dakota |
| 73 | John Jr. Bakel | 24 | Son | Truck Driver | Iowa |
| 74 | Joseph Bakel | 21 | Son | Clerk | Iowa |
| 75 | Thomas Bakel | 19 | Son | Laborer | Iowa |
| 76 | Mary Ann Bakel | 16 | Daughter | — | Iowa |
| 77 | Virginia Bakel | 7 | Daughter | — | Iowa |
| 78 | Dan Burns | 74 | Head | — | Eire Ireland |
| 79 | Amelia Burns | 72 | Wife | — | Illinois |
| 80 | Henry Schuller | 49 | Head | Care Taker | 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)