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Mary Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Indiana
Our Model Tree links this Mary Mullen across the 1930 and 1940 US Censuses in Delaware-County, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Indiana |
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Mt. Pleasant Township |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Mt Pleasant Township |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Mullen | Daughter | — | 5 | ~1935 |
| Austin Mullen | Head | — | 39 | ~1901 |
| Lawrence Mullen | Son | — | 6 | ~1934 |
| Eugene Mullen | Son | — | 12 | ~1928 |
| Mary Mullen | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Delaware, Indiana
Spouse, age 23
Delaware, Indiana · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 16 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Delaware-County, Indiana
Spouse, age 34
Delaware-County, Indiana · implied b. ~1906 — 5 household members
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Mt. Pleasant Township |
| 1935 Residence (County) | Delaware |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mullen
Spouse · 1940 · age 34 · b. ~1906 · Indiana
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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 — Delaware-County, Indiana
Open full size
1940 US Federal Census — Delaware-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01038-00829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carl Atwell | 16 | Son | — | Indiana |
| 42 | Orville Atwell | 14 | Son | — | Indiana |
| 43 | Donna Atwell | 11 | Daughter | — | Indiana |
| 44 | Daniel Atwell | 9 | Son | — | Indiana |
| 45 | William E. Mellott | 40 | Head | Inspector | Indiana |
| 46 | Edna Mellott | 37 | Wife | Packer | Kentucky |
| 47 | William E. Mellott | 18 | Son | — | Indiana |
| 48 | Dorothy Mellott | 15 | Daughter | — | Indiana |
| 49 | Esther Mellott | 13 | Daughter | — | Indiana |
| 50 | Bobby Mellott | 11 | Son | — | Indiana |
| 51 | Donald Mellott | 9 | Son | — | Indiana |
| 52 | Eva Heaton | 62 | Head | — | Indiana |
| 53 | Joseph Heaton | 28 | Son | — | Indiana |
| 54 | Fred Heaton | 26 | Son | Inspector | Indiana |
| 55 | Ralph Heaton | 21 | Son | Machinist | Indiana |
| 56 | Mary Heaton | 20 | Daughter | Practical Nurse | Indiana |
| 57 | Jeanette Heaton | 18 | Daughter | — | Indiana |
| 58 | Judith Ann Heaton | 9 | Granddaughter | — | Indiana |
| 59 | Edsil Dailey | 45 | Head | Commercial Agent | Michigan |
| 60 | Gladys Dailey | 37 | Wife | — | Indiana |
| 61 | Billy Dailey | 16 | Son | — | Indiana |
| 62 | Norma C. Dailey | 14 | Daughter | — | Indiana |
| 63 | Earl Van Kanel | 32 | Head | Machinist | Indiana |
| 64 | Mary Van Kanel | 22 | Wife | — | Indiana |
| 65 | Jerry Lee Van Kanel | 2 | Son | — | Indiana |
| 66 | Myrl Glaub | 29 | Head | Mechanic | Indiana |
| 67 | Babelle Glaub | 28 | Wife | Waitress | Ohio |
| 68 | Ernest Slete | 14 | Nephew | — | Michigan |
| 69 | Nellie Barry | 50 | Head | — | Indiana |
| 70 | Marshal Barry | 20 | Son | Farm Laborer | Indiana |
| 71 | Homer Pullin | 38 | Brother | — | Indiana |
| 72 | Austin Mullen | 39 | Head | Plumber | Indiana |
| 73 | Mary Mullen THIS PERSON | 34 | Wife | — | Indiana |
| 74 | Eugene Mullen | 12 | Son | — | Indiana |
| 75 | Lawrence Mullen | 6 | Son | — | Indiana |
| 76 | Marilyn Mullen | 5 | Daughter | — | Indiana |
| 77 | Louis Stephenson | 52 | Head | Farmer | California |
| 78 | Lola Stephenson | 40 | Wife | Cook | Indiana |
| 79 | Philip Stephenson | 6 | Son | — | Indiana |
| 80 | James Masters | 48 | Head | Mechanic | 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)