MC
Mary Coffey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Kentucky
Our Model Tree links this Mary Coffey across the 1930 and 1940 US Censuses in Lawrence-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 13-person household.
Age 18
b. ~1922
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Kentucky |
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Occupation | New worker |
| Highest Grade | No 8 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | New Worker |
| Est. Birth Year | ~1922 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dennis Coffey | Head | — | 48 | ~1892 |
| Mary Coffey | Daughter | — | 18 | ~1922 |
| Geneva Coffey | Daughter | — | 3 | ~1937 |
| Chester Coffey | Son | — | 9 | ~1931 |
| Gardet Coffey | Daughter | — | 14 | ~1926 |
| Loraine Coffey | Daughter | — | 6 | ~1934 |
| Walden Coffey | Son | — | 19 | ~1921 |
| Irene Coffey | Daughter | — | 6 | ~1934 |
| Henry Coffey | Son | — | 16 | ~1924 |
| Laura Coffey | Spouse | — | 43 | ~1897 |
| Evelyn Coffey | Other | — | 19 | ~1921 |
| Billie Coffey | Daughter | — | 1 | ~1939 |
| Belva Coffey | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Lawrence, Kentucky
Daughter, age 8
Lawrence, Kentucky · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coffee |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Lawrence-County, Kentucky
Daughter, age 18
Lawrence-County, Kentucky · implied b. ~1922 — 13 household members
| Surname | Coffey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lawrence |
| Occupation | New worker |
| Highest Grade | No 8 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 · 1940 · age 18 · b. ~1922 · Kentucky
★ You are viewing this record
Sibling
Walden Coffey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Billie Coffey
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loraine Coffey
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Coffey
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gardet Coffey
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chester Coffey
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Coffey
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geneva Coffey
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Belva Coffey
Sibling · 1940 · age 12
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 — Lawrence-County, Kentucky
Open full size
1940 US Federal Census — Lawrence-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01328-00344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Jr. Mcgranahan | 1 | Son | — | Kentucky |
| 42 | P. H. Holbrook | 48 | Head | Bus Driver | Kentucky |
| 43 | Nura Holbrook | 46 | Wife | — | Kentucky |
| 44 | Paris Holbrook | 13 | Son | — | Kentucky |
| 45 | Larry Workman | 24 | Step-son | Mechanic | Kentucky |
| 46 | Ora Hill | 46 | Head | Truck Driver | Ohio |
| 47 | Bertha Hill | 47 | Wife | — | Kentucky |
| 48 | William Hill | 17 | Son | — | Kentucky |
| 49 | Dennis Coffey | 48 | Head | Laborer | Kentucky |
| 50 | Laura Coffey | 43 | Wife | — | Kentucky |
| 51 | Mary Coffey THIS PERSON | 18 | Daughter | New Worker | Kentucky |
| 52 | Henry Coffey | 16 | Son | New Worker | Kentucky |
| 53 | Gardet Coffey | 14 | Daughter | New Worker | Kentucky |
| 54 | Belva Coffey | 12 | Daughter | — | Kentucky |
| 55 | Chester Coffey | 9 | Son | — | Kentucky |
| 56 | Loraine Coffey | 6 | Daughter | — | Kentucky |
| 57 | Irene Coffey | 6 | Daughter | — | Kentucky |
| 58 | Geneva Coffey | 3 | Daughter | — | Kentucky |
| 59 | Billie Jean Coffey | 1 | Daughter | — | Kentucky |
| 60 | Walden Coffey | 19 | Son | Farm Laborer | Kentucky |
| 61 | Evelyn Coffey | 19 | Daughter-in-law | — | Kentucky |
| 62 | Epp Wright | 35 | Head | Farmer | West Va |
| 63 | Dolly Wright | 33 | Wife | — | Kentucky |
| 64 | Alberta Wright | 10 | Daughter | — | Kentucky |
| 65 | Barbara Jean Wright | 8 | Daughter | — | Kentucky |
| 66 | Alvan Stanley Wright | 7 | Son | — | Kentucky |
| 67 | Charlotte Faye Wright | 5 | Daughter | — | Kentucky |
| 68 | Jett Collins | 32 | Head | Farmer | Kentucky |
| 69 | Lydia Collins | 27 | Wife | — | West Va |
| 70 | Elwood Collins | 7 | Son | — | West Va |
| 71 | Harold Ed Collins | 5 | Son | — | Kentucky |
| 72 | Dixie Jewel Collins | 3 | Daughter | — | Kentucky |
| 73 | Ruby Carol Collins | 1 | Daughter | — | Kentucky |
| 74 | Alice French | 79 | Head | — | Kentucky |
| 75 | George Grubb | 26 | Head | Farmer | Kentucky |
| 76 | Dixie Grubb | 24 | Wife | — | Kentucky |
| 77 | Doris Ellen Grubb | 5 | Daughter | — | Kentucky |
| 78 | W. O. May | 50 | Head | Farmer | Kentucky |
| 79 | Beulah May | 37 | Wife | — | Kentucky |
| 80 | Dixie Jean May | 11 | Daughter | — | Kentucky |
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)