MW
Mary Whalen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Ohio
Our Model Tree links this Mary Whalen across the 1920, 1930 and 1940 US Censuses in Warren-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 3-person household.
Age 55
b. ~1885
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Ohio |
| Surname | Whalen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Hamilton Twp |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Ohio |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Hamilton Twp |
| Est. Birth Year | ~1885 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Whalen | Daughter | — | 16 | ~1924 |
| Robert Whalen | Head | — | 62 | ~1878 |
| Mary Whalen | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Warren, Ohio
Spouse, age 34
Warren, Ohio · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whalen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Warren, Ohio
Other, age 45
Warren, Ohio · implied b. ~1885 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Whalen |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Warren-County, Ohio
Spouse, age 55
Warren-County, Ohio · implied b. ~1885 — 3 household members
| Surname | Whalen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Hamilton Twp |
| Naturalization Status | Naturalized |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Ohio |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Whalen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Whalen
Spouse · 1940 · age 55 · b. ~1885 · Ohio
★ 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 — Warren-County, Ohio
Open full size
1940 US Federal Census — Warren-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03164-00405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henke Paul Kemper | 18 | Son | — | Ohio |
| 2 | Crooks Edward Kemper | 50 | Hired-hand | Hired-Man | Kentucky |
| 3 | Crooks Alma Kemper | 41 | Wife | — | Kentucky |
| 4 | Clifford Witham | 53 | Head | Tenant | Ohio |
| 5 | Mary C. Witham | 50 | Wife | — | Ohio |
| 6 | Homer Witham | 23 | Son | — | Ohio |
| 7 | John Witham | 15 | Son | — | Ohio |
| 8 | Clara Witham | 12 | Daughter | — | Ohio |
| 9 | E. S. Mcclain | 72 | Head | Farmer | Ohio |
| 10 | T. E. Mcclain | 68 | Wife | — | Kentucky |
| 11 | Jessie Mcclain | 38 | Son | Laborer | Missouri |
| 12 | Martha Mcclain | 30 | Daughter | Stenographer | Missouri |
| 13 | Mary C. Mcclain | 28 | Daughter | Nurse | Missouri |
| 14 | Robert Whalen | 62 | Head | Farmer | Ohio |
| 15 | Mary Whalen THIS PERSON | 55 | Wife | — | Ireland |
| 16 | Mary Whalen | 16 | Daughter | — | Ohio |
| 17 | Clyde D. Miller | 60 | Head | Farm-Labor | Ohio |
| 18 | Lillian Miller | 47 | Wife | — | Kentucky |
| 19 | Juanita Harding | 15 | Step-daughter | — | Kentucky |
| 20 | Guy Culbertson | 35 | Head | Farmer | Ohio |
| 21 | Martha F. Culbertson | 31 | Wife | — | Oklahoma |
| 22 | Guy Jr. Culbertson | 10 | Son | — | Ohio |
| 23 | Lois J. Culbertson | 7 | Daughter | — | Ohio |
| 24 | Burrell Fontonier | 20 | Hired-girl | Hired-Girl | Ohio |
| 25 | Henry Wiles | 53 | Head | Farmer | Kentucky |
| 26 | Elsie Wiles | 56 | Wife | — | Kentucky |
| 27 | Gordon Wiles | 27 | Son | Machinist | Kentucky |
| 28 | Merrill Wiles | 23 | Daughter | School Teacher | Ohio |
| 29 | Fern Wiles | 17 | Daughter | — | Ohio |
| 30 | Raymond Testerman | 34 | Head | Packer | Kentucky |
| 31 | Mary Testerman | 28 | Wife | — | Virginia |
| 32 | Earl Testerman | 5 | Son | — | Ohio |
| 33 | Carl Testerman | 3 | Son | — | Ohio |
| 34 | C. F. | 72 | Father | Farmer | Kentucky |
| 35 | Ann L. | 72 | Mother | — | Kentucky |
| 36 | Ernie | 37 | Brother | — | Kentucky |
| 37 | Frank S. Kingman | 73 | Head | — | Ohio |
| 38 | Frank Langdon | 70 | Head | — | Ohio |
| 39 | Maxine Langdon | 29 | Daughter | Laborer | Ohio |
| 40 | Howard Langdon | 26 | Son | Laborer | Ohio |
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)