MC
Mary Coffey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Missouri
Our Model Tree links this Mary Coffey across the 1930 and 1940 US Censuses in Polk, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 5
b. ~1925
Female
Daughter
Born: Missouri
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Missouri |
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Can Read/Write | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Madison Township |
| Est. Birth Year | ~1925 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lena Coffey | Daughter | — | 15 | ~1915 |
| Herbert Coffey | Son | — | 16 | ~1914 |
| George Coffey | Head | — | 36 | ~1894 |
| Delbert Coffey | Son | — | 8 | ~1922 |
| Leona Coffey | Daughter | — | 10 | ~1920 |
| Floyd Coffey | Daughter | — | 12 | ~1918 |
| Mary Coffey | Daughter | — | 5 | ~1925 |
Census Appearances
1930
Polk, Missouri
Daughter, age 5
Polk, Missouri · implied b. ~1925 — 7 household members
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Polk-County, Missouri
Daughter, age 15
Polk-County, Missouri · implied b. ~1925 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Koffey |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Union township |
| 1935 Residence (County) | Polk |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Coffey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Coffey
Daughter · 1930 · age 5 · b. ~1925 · Missouri
★ You are viewing this record
Sibling
Lena Coffey
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Coffey
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delbert Coffey
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Coffey
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Coffey
Sibling · 1930 · age 16
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
1930 US Federal Census — Polk, Missouri
Open full size
1930 US Federal Census — Polk, Missouri
Page Contents
50 people indexed on this census page (ia:1930:missouricensus00reel1219:0122)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otis Underwood | 38 | Head | Farmer | Missouri |
| 2 | Eda Underwood | 40 | Wife | — | Missouri |
| 3 | Lena Underwood | 20 | Daughter | — | Missouri |
| 4 | Harry Underwood | 18 | Son | — | Missouri |
| 5 | Julia Underwood | 16 | Daughter | — | Missouri |
| 6 | Galen Underwood | 14 | Son | — | Missouri |
| 7 | Myrtle Underwood | 12 | Daughter | — | Missouri |
| 8 | Wm Tinsley | 81 | Father-in-law | — | Tennessee |
| 9 | William Matney | 40 | Head | Carpenter | Missouri |
| 10 | Amanda Matney | 37 | Wife | — | Missouri |
| 11 | Annie E Matney | 17 | Daughter | — | Missouri |
| 12 | Nellie O Matney | 16 | Son | — | Missouri |
| 13 | Allen Matney | 14 | Son | — | Missouri |
| 14 | Eugene Matney | 12 | Son | — | Missouri |
| 15 | Mable E Matney | 9 | Daughter | — | Missouri |
| 16 | Omar Brockett | 74 | Father-in-law | — | Indiana |
| 17 | Walter J Watkins | 51 | Head | Farmer | Missouri |
| 18 | Edna Watkins | 42 | Wife | — | Missouri |
| 19 | Ralph A Smiley | 28 | Head | Farmer | Missouri |
| 20 | Lena M Smiley | 19 | Wife | — | Missouri |
| 21 | Ralph R Smiley | 1 | Son | — | Missouri |
| 22 | George W Walker | 65 | Head | Farmer | Missouri |
| 23 | Anna E Walker | 60 | Wife | — | Missouri |
| 24 | William Smith | 23 | Head | — | Missouri |
| 25 | Mildred Smith | 18 | Wife | — | Missouri |
| 26 | Dorothy Smith | 1 | Daughter | — | Missouri |
| 27 | Jasper F Underwood | 61 | Head | Farmer | Missouri |
| 28 | Florence Underwood | 50 | Wife | — | Missouri |
| 29 | John R Underwood | 17 | Son | — | Missouri |
| 30 | William E Sweet | 63 | Head | Farmer | Missouri |
| 31 | Jane B Sweet | 60 | Wife | — | Indiana |
| 32 | Edith Sweet | 38 | Daughter | — | Missouri |
| 33 | Isaac Richardson | 59 | Head | Farmer | Missouri |
| 34 | Dora Richardson | 47 | Wife | — | Missouri |
| 35 | Imogene Richardson | 6 | Daughter | — | Missouri |
| 36 | Irene Richardson | 3 | Daughter | — | Missouri |
| 37 | John M Richardson | 83 | Father | — | Kentucky |
| 38 | Jesse J Phillips | 49 | Head | Farmer | Missouri |
| 39 | Sophie H Phillips | 13 | Wife | — | Missouri |
| 40 | Robert M Thurston | 33 | Son-in-law | — | Missouri |
| 41 | Rosy G Thurston | 26 | Daughter | Clergyman | Missouri |
| 42 | Joe T Thurston | 12 | Son | — | Missouri |
| 43 | Dorothy M Thurston | 10 | Daughter | — | Missouri |
| 44 | George M Coffey | 36 | Head | Farmer | Missouri |
| 45 | Herbert Coffey | 16 | Son | — | Missouri |
| 46 | Lena Coffey | 15 | Daughter | — | Missouri |
| 47 | Floyd Coffey | 12 | Daughter | — | Missouri |
| 48 | Leona Coffey | 10 | Daughter | — | Missouri |
| 49 | Delbert Coffey | 8 | Son | — | Missouri |
| 50 | Mary Coffey THIS PERSON | 5 | Daughter | — | Missouri |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)