MC
Mary Cummings — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Howard-County, Iowa
Our Model Tree links this Mary Cummings across the 1930 and 1940 US Censuses in Howard-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 7-person household.
Age 49
b. ~1891
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Howard-County, Iowa |
| Surname | Cummings |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | New Oregon Twp. |
| 1935 Residence (County) | Howard |
| Additional Details | |
| Industry | H |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | New Oregon Twp |
| Est. Birth Year | ~1891 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Rita Cummings | Daughter | — | 3 | ~1937 |
| Margaret Cummings | Daughter | — | 18 | ~1922 |
| Emmett Cummings | Head | — | 47 | ~1893 |
| Jimmy Cummings | Son | — | 6 | ~1934 |
| Richard Cummings | Son | — | 23 | ~1917 |
| William Cummings | Son | — | 9 | ~1931 |
| Mary Cummings | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Howard, Iowa
Spouse, age 39
Howard, Iowa · implied b. ~1891 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cummings |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | Canada-French |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Howard-County, Iowa
Spouse, age 49
Howard-County, Iowa · implied b. ~1891 — 7 household members
| Surname | Cummings |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | New Oregon Twp. |
| 1935 Residence (County) | Howard |
| Industry | H |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Cummings across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cummings
Spouse · 1940 · age 49 · b. ~1891 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Howard-County, Iowa
Open full size
1940 US Federal Census — Howard-County, Iowa
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01167-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carol Marie Pratz | 2 | Daughter | — | Iowa |
| 2 | James Kostka | 54 | Head | Farmer | Iowa |
| 3 | Anna Kostka | 55 | Wife | — | Iowa |
| 4 | Clarence Kostka | 22 | Son | Farm Labor | Iowa |
| 5 | Leonard Kostka | 17 | Son | Farm Labor | Iowa |
| 6 | Alfred Benda | 35 | Head | Farmer | Iowa |
| 7 | Mary Benda | 30 | Wife | — | Iowa |
| 8 | Edward Benda | 13 | Son | — | Iowa |
| 9 | Alfred Benda | 8 | Son | — | Iowa |
| 10 | Angeline Benda | 4 | Daughter | — | Iowa |
| 11 | Frank Bucks | 64 | Head | Farmer | Iowa |
| 12 | Marguerite Bucks | 54 | Wife | — | Germany |
| 13 | Louis W. Ahlert | 58 | Head | Farmer | Iowa |
| 14 | Leona Ahlert | 56 | Wife | — | Iowa |
| 15 | Arthur Ahlert | 25 | Son | Farm Labor | Iowa |
| 16 | James Ahlert | 14 | Son | Farm Labor | Iowa |
| 17 | Patricia Ahlert | 11 | Daughter | — | Iowa |
| 18 | Lloyd Ahlert | 1 | Son | — | Iowa |
| 19 | Jerry Hruska | 36 | Head | Farmer | Iowa |
| 20 | Vera Hruska | 35 | Wife | — | Iowa |
| 21 | Lawrence Hruska | 4 | Son | — | Iowa |
| 22 | Beverly Hruska | 3 | Daughter | — | Iowa |
| 23 | Zach Alice Hruska | 18 | Sister-in-law | — | Iowa |
| 24 | Emmett Cummings | 47 | Head | Farmer | Iowa |
| 25 | Mary E. Cummings THIS PERSON | 49 | Wife | — | Iowa |
| 26 | Richard Cummings | 23 | Son | — | Iowa |
| 27 | Margaret Cummings | 18 | Daughter | — | Iowa |
| 28 | William Cummings | 9 | Son | — | Iowa |
| 29 | Jimmy Cummings | 6 | Son | — | Iowa |
| 30 | Rita J. Cummings | 3 | Daughter | — | Iowa |
| 31 | Lisette Lienhard | 68 | Head | — | Switzerland |
| 32 | Charlotte Lienhard | 30 | Daughter | — | Iowa |
| 33 | Harry Howard | 56 | Head | Farmer | England |
| 34 | Daisy Howard | 50 | Wife | — | England |
| 35 | Kathleen Howard | 25 | Daughter | Secretary | Iowa |
| 36 | Evelyn Howard | 13 | Daughter | — | Iowa |
| 37 | James Howard | 65 | Brother | — | England |
| 38 | Ethel Sayers | 53 | Sister | — | England |
| 39 | Fred Lowry | 65 | Head | Drug Store | 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)