MC
Mary Cunningham — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Walworth-County, Wisconsin
Our Model Tree links this Mary Cunningham across the 1930 and 1940 US Censuses in Walworth-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 13-person household.
Age 15
b. ~1925
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Walworth-County, Wisconsin |
| Surname | Cunningham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Walworth |
| 1935 Residence (County) | Walworth |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Walworth |
| 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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Betty Cunningham | Daughter | — | 3 | ~1937 |
| Joan Cunningham | Daughter | — | 9 | ~1931 |
| Mary Cunningham | Daughter | — | 15 | ~1925 |
| Verne Cunningham | Head | — | 44 | ~1896 |
| Lizzie Cunningham | Other | — | 66 | ~1874 |
| Robert Rodman | Other | — | 61 | ~1879 |
| William Cunningham | Son | — | 7 | ~1933 |
| La Cunningham | Son | — | 12 | ~1928 |
| Lawrence Cunningham | Son | — | 11 | ~1929 |
| Gilbert Cunningham | Son | — | 8 | ~1932 |
| Kenneth Cunningham | Son | — | 2 | ~1938 |
| John Cunningham | Son | — | ~1940 | |
| Hazel Cunningham | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Walworth, Wisconsin
Daughter, age 5
Walworth, Wisconsin · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cunningham |
| Given Name | Mary E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Walworth-County, Wisconsin
Daughter, age 15
Walworth-County, Wisconsin · implied b. ~1925 — 13 household members
| Surname | Cunningham |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Walworth |
| 1935 Residence (County) | Walworth |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| 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 Mary Cunningham across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cunningham
Daughter · 1940 · age 15 · b. ~1925 · Wisconsin
★ You are viewing this record
Sibling
William Cunningham
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Cunningham
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Cunningham
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert Cunningham
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
La Cunningham
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Cunningham
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Cunningham
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cunningham
Sibling · 1940 · age
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 — Walworth-County, Wisconsin
Open full size
1940 US Federal Census — Walworth-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04531-01043)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Verne Cunningham | 44 | Head | Farmer | Wisconsin |
| 2 | Hazel Cunningham | 35 | Wife | — | Wisconsin |
| 3 | Mary Cunningham THIS PERSON | 15 | Daughter | — | Wisconsin |
| 4 | La Verne Jr. Cunningham | 12 | Son | — | Wisconsin |
| 5 | Lawrence Cunningham | 11 | Son | — | Wisconsin |
| 6 | Joan Cunningham | 9 | Daughter | — | Wisconsin |
| 7 | Gilbert Cunningham | 8 | Son | — | Wisconsin |
| 8 | William Cunningham | 7 | Son | — | Wisconsin |
| 9 | Betty Jane Cunningham | 3 | Daughter | — | Wisconsin |
| 10 | Kenneth Eugene Cunningham | 2 | Son | — | Wisconsin |
| 11 | John Merlin Cunningham | 0 | Son | — | Wisconsin |
| 12 | Lizzie Cunningham | 66 | Mother | — | Wisconsin |
| 13 | Robert Rodman | 61 | Uncle | Farm Laborer | Wisconsin |
| 14 | Fred A. Nash | 53 | Head | Farmer | Illinois |
| 15 | Ethelyn Nash | 53 | Wife | — | South Dakota |
| 16 | Myrl Nash | 20 | Son | Farm Laborer | Wisconsin |
| 17 | Harold Nash | 17 | Son | — | Wisconsin |
| 18 | Fred G. Schnitcke | 54 | Head | Farmer | Illinois |
| 19 | Gladys Schnitcke | 26 | Daughter | — | Wisconsin |
| 20 | Howard Schnitcke | 21 | Son | Farm Laborer | Wisconsin |
| 21 | Charles F. Schully | 56 | Head | Farmer | Illinois |
| 22 | Hattie Schully | 52 | Wife | — | Wisconsin |
| 23 | Arna F. Huff | 40 | Head | Farmer | Wisconsin |
| 24 | Anna Huff | 38 | Wife | — | Illinois |
| 25 | Phillip Huff | 13 | Son | — | Wisconsin |
| 26 | Lawrence E. Ingalls | 37 | Head | Farmer | Wisconsin |
| 27 | Evelyn Ingalls | 29 | Wife | — | Wisconsin |
| 28 | John E. Ingalls | 6 | Son | — | Wisconsin |
| 29 | Susan Lee Ingalls | 1 | Daughter | — | Wisconsin |
| 30 | Walter Sevegle | 48 | Head | Farm Laborer | Illinois |
| 31 | Erma D. Sevegle | 43 | Wife | — | South Dakota |
| 32 | Barbara Sevegle | 18 | Daughter | General Housework | Minnesota |
| 33 | Warren Sevegle | 16 | Son | Caddy | Illinois |
| 34 | Darrell Sevegle | 10 | Son | — | Illinois |
| 35 | Margaret Lee Sevegle | 6 | Daughter | — | Illinois |
| 36 | Paul Cunningham | 17 | Lodger | Farm Laborer | Indiana |
| 37 | Fred D. Feltham | 30 | Head | Farmer | Illinois |
| 38 | Effie Feltham | 25 | Wife | — | Illinois |
| 39 | Robert Fred Feltham | 0 | Son | — | Wisconsin |
| 40 | Herbert S. Feltham | 60 | Head | Farmer | England |
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)