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Mary Merrill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Indiana
Our Model Tree links this Mary Merrill across the 1920, 1930 and 1940 US Censuses in Monroe-County, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Indiana |
| Surname | Merrill |
| Given Name | Mary A. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bloomington City |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Bloomington City |
| Est. Birth Year | ~1875 |
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 |
|---|---|---|---|---|
| Barzille Merrill | Head | — | 75 | ~1865 |
| Mary Merrill | Spouse | — | 65 | ~1875 |
| Winifred Merrill | Daughter | — | 40 | ~1900 |
Census Appearances
1920
Monroe, Indiana
Spouse, age 47
Monroe, Indiana · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Merrill |
| Given Name | Mayme |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Monroe, Indiana
Other, age 58
Monroe, Indiana · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Merrill |
| Given Name | Mary A |
| Relationship to Head | Wife-H- |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Monroe-County, Indiana
Spouse, age 65
Monroe-County, Indiana · implied b. ~1875 — 3 household members
| Surname | Merrill |
| Given Name | Mary A. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bloomington City |
| 1935 Residence (County) | Monroe |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Merrill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Merrill
Spouse · 1940 · age 65 · b. ~1875 · 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 — Monroe-County, Indiana
Open full size
1940 US Federal Census — Monroe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01079-00575)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence Robinson | 44 | wife | — | Iowa |
| 42 | Mary E. Campbell | 35 | Lodger | Instructor | Ohio |
| 43 | Ralph Cleland | 47 | Head | Professor | Iowa |
| 44 | Elizabeth Cleland | 37 | wife | — | New Jersey |
| 45 | Wallace Cleland | 10 | son | — | Maryland |
| 46 | Robert E. Cleland | 7 | son | — | Maryland |
| 47 | Charles F. Cleland | 1 | son | — | Indiana |
| 48 | Alfred C. Kinsey | 45 | Head | Professor | New Jersey |
| 49 | Clara M. Kinsey | 41 | wife | — | Indiana |
| 50 | Anne M. Kinsey | 16 | daughter | — | Indiana |
| 51 | Joan N. Kinsey | 14 | daughter | — | Indiana |
| 52 | Bruce M. Kinsey | 11 | son | — | Indiana |
| 53 | Leo A. Thebs | 62 | Head | Draftsman | Kentucky |
| 54 | Woodrow Thebs | 27 | son | — | Indiana |
| 55 | Margaret Weikel | 64 | sister in law | — | Kentucky |
| 56 | William J. Maenkhaus | 69 | Head | Professor | Indiana |
| 57 | Sara Maenkhaus | 63 | wife | — | Indiana |
| 58 | Carl Maenkhaus | 25 | son | — | Indiana |
| 59 | Robert Tangeman | 29 | Head | Professor | Ohio |
| 60 | Frances Tangeman | 29 | wife | — | Ohio |
| 61 | John T. Tangeman | 3 | son | — | Ohio |
| 62 | R. Audrey Dunning | 20 | maid | Maid | Indiana |
| 63 | Robert E. Walder | 33 | Head | Professor | Indiana |
| 64 | Edna M. Walder | 32 | wife | — | Indiana |
| 65 | Deborah Walder | 8 | daughter | — | New York |
| 66 | Jane Walder | 1 | daughter | — | Indiana |
| 67 | Frank Horack | 32 | Head | Professor | Iowa |
| 68 | Marie Horack | 28 | wife | Secretary | West Virginia |
| 69 | Albert E. Hoadley | 36 | Head | Owner And Manager | Indiana |
| 70 | Kathryn Hoadley | 35 | wife | — | Indiana |
| 71 | Virginia Hoadley | 12 | daughter | — | Indiana |
| 72 | Thomas Hoadley | 10 | son | — | Indiana |
| 73 | Wanda Ridge | 24 | maid | Maid | Indiana |
| 74 | Oliver P. Field | 42 | Head | Professor | Minnesota |
| 75 | Claire K. Field | 39 | wife | — | Missouri |
| 76 | Janet M. Field | 1 | daughter | — | Minnesota |
| 77 | Barzille W. Merrill | 75 | Head | Retired Dean Emeritus | Illinois |
| 78 | Mary A. Merrill THIS PERSON | 65 | wife | — | Pennsylvania |
| 79 | Winifred Merrill | 40 | daughter | Professor | Kansas |
| 80 | Hugh E. Willis | 65 | Head | Professor | Vermont |
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)