MD
Mary Delaney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Missouri
Our Model Tree links this Mary Delaney across the 1930 and 1940 US Censuses in Knox-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Missouri |
| Surname | Delaney |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Greensburg Twp. |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Greensburg Twp |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Delaney | Daughter | — | 12 | ~1928 |
| Robert Delaney | Son | — | 10 | ~1930 |
| Richard Delaney | Son | — | 1 | ~1939 |
| George Delaney | Son | — | 13 | ~1927 |
| William Delaney | Son | — | 5 | ~1935 |
| William Delaney | Head | — | 39 | ~1901 |
| Grace Delaney | Spouse | — | 35 | ~1905 |
| Delores Delaney | Daughter | — | 3 | ~1937 |
| James Delaney | Son | — | 7 | ~1933 |
Census Appearances
1930
Knox, Missouri
Daughter, age 1
Knox, Missouri · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Delaney |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Knox-County, Missouri
Daughter, age 12
Knox-County, Missouri · implied b. ~1928 — 9 household members
| Surname | Delaney |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Greensburg Twp. |
| 1935 Residence (County) | Knox |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Delaney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Delaney
Daughter · 1940 · age 12 · b. ~1928 · Missouri
★ You are viewing this record
Sibling
George Delaney
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Delaney
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Delaney
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Delaney
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Delaney
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Delaney
Sibling · 1940 · age 10
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 — Knox-County, Missouri
Open full size
1940 US Federal Census — Knox-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02121-00145)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James E. Dromey | 40 | Head | Farmer | Missouri |
| 42 | Beatrice I. Dromey | 29 | Wife | — | Missouri |
| 43 | C. P. Witherow | 29 | Head | Farmer | Missouri |
| 44 | Edna Witherow | 32 | Wife | — | Missouri |
| 45 | William Mccabe | 83 | Head | Farmer | West Virginia |
| 46 | Maggie Mccabe | 77 | Sister | — | Illinois |
| 47 | George A. Smith | 58 | Head | Farmer | Missouri |
| 48 | Evelyn Smith | 54 | Wife | — | Missouri |
| 49 | Walter Ballmyer | 29 | Head | Labor Maintenance | Missouri |
| 50 | Maxine Ballmyer | 22 | Wife | — | Missouri |
| 51 | Emma M. Ballmyer | 5 | Daughter | — | Missouri |
| 52 | Jackie Lee Ballmyer | 4 | Son | — | Missouri |
| 53 | Billie Gene Ballmyer | 2 | Son | — | Missouri |
| 54 | Walter Dean Ballmyer | 1 | Son | — | Missouri |
| 55 | Ruth Ann Ballmyer | 0 | Daughter | — | Missouri |
| 56 | Frank Quigley | 55 | Head | Farmer | Missouri |
| 57 | Johanna Quigley | 84 | Mother | — | Ireland |
| 58 | William Quigley | 60 | Brother | Farmer | Missouri |
| 59 | James Quigley | 58 | Brother | Farmer | Missouri |
| 60 | Thomas Quigley | 50 | Brother | Farmer | Missouri |
| 61 | Edward Quigley | 48 | Brother | Farmer | Missouri |
| 62 | William N. Delaney | 39 | Head | Farmer | Missouri |
| 63 | Grace Delaney | 35 | Wife | — | Missouri |
| 64 | George Delaney | 13 | Son | — | Missouri |
| 65 | Mary M. Delaney THIS PERSON | 12 | Daughter | — | Missouri |
| 66 | Robert Delaney | 10 | Son | — | Missouri |
| 67 | James Delaney | 7 | Son | — | Missouri |
| 68 | William F. Delaney | 5 | Son | — | Missouri |
| 69 | Delores Delaney | 3 | Daughter | — | Missouri |
| 70 | Richard Delaney | 1 | Son | — | Missouri |
| 71 | Leo E. Hurnolt | 23 | Head | Farmer | Missouri |
| 72 | Georgia M. Hurnolt | 22 | Wife | — | Missouri |
| 73 | Barbara J. Hurnolt | 1 | Daughter | — | Missouri |
| 74 | A. W. Hilbrant | 77 | Head | — | Missouri |
| 75 | C. W. Rice | 79 | Head | — | Illinois |
| 76 | Mary E. Rice | 82 | Wife | — | Illinois |
| 77 | C. E. Rice | 54 | Son | Farmer | Illinois |
| 78 | Aurthur Rice | 21 | Grand-Son | Operator Owner | California |
| 79 | Patrick Costello | 83 | Head | — | Pennsylvania |
| 80 | Bessie Costello | 76 | Wife | — | Ireland |
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)