MC
Mary Collier — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Floyd-County, Kentucky
Our Model Tree links this Mary Collier across the 1930 and 1940 US Censuses in Floyd-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 6-person household.
Age 10
b. ~1930
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Floyd-County, Kentucky |
| Surname | Collier |
| Given Name | Mary Lou |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag Dist 2 |
| 1935 Residence (County) | Floyd |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 2 |
| Est. Birth Year | ~1930 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eugene Collier | Son | — | 8 | ~1932 |
| Mary Collier | Daughter | — | 10 | ~1930 |
| Ida Collier | Other | — | 65 | ~1875 |
| Denver Collier | Son | — | 11 | ~1929 |
| Oakie Collier | Son | — | 13 | ~1927 |
| Oakil Collier | Head | — | 34 | ~1906 |
Census Appearances
1930
Floyd, Kentucky
Daughter, age
Floyd, Kentucky · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collier |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Floyd-County, Kentucky
Daughter, age 10
Floyd-County, Kentucky · implied b. ~1930 — 6 household members
| Surname | Collier |
| Given Name | Mary Lou |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag Dist 2 |
| 1935 Residence (County) | Floyd |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| 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 Collier across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Collier
Daughter · 1940 · age 10 · b. ~1930 · Kentucky
★ You are viewing this record
Sibling
Denver Collier
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Collier
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oakie Collier
Sibling · 1940 · age 13
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 — Floyd-County, Kentucky
Open full size
1940 US Federal Census — Floyd-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01305-00724)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Conley | 27 | wife | — | Kentucky |
| 42 | Chester A. Conley | 5 | son | — | Kentucky |
| 43 | Harold D. Conley | 3 | son | — | Kentucky |
| 44 | Loraine Conley | 2 | daughter | — | Kentucky |
| 45 | Annie Conley | 11 | niece | — | Kentucky |
| 46 | Hannie Conley | 56 | mother | — | Kentucky |
| 47 | Estill Conley | 18 | son | New Worker | Kentucky |
| 48 | Langley Looney | 27 | Head | Mining | Kentucky |
| 49 | Lillian D. Looney | 20 | wife | — | West Va. |
| 50 | Leona Looney | 3 | daughter | — | Kentucky |
| 51 | Roger H. Looney | 2 | son | — | Kentucky |
| 52 | Emery Burks | 34 | border | Mining | Kentucky |
| 53 | Dradie Looney | 29 | sister | — | Kentucky |
| 54 | Bruce D. Lyons | 21 | Head | Mining | Kentucky |
| 55 | Helen Lyons | 19 | wife | — | West Virginia |
| 56 | Bill Kendrick | 38 | Head | Mining | Kentucky |
| 57 | Golda D. Kendrick | 36 | wife | — | Kentucky |
| 58 | Edith Kendrick | 16 | daughter | — | Kentucky |
| 59 | Katherine Kendrick | 15 | daughter | — | Kentucky |
| 60 | Ruth Kendrick | 13 | daughter | — | Kentucky |
| 61 | Franklin Kendrick | 6 | son | — | Kentucky |
| 62 | Harry Ratcliff | 31 | Head | Mining | Kentucky |
| 63 | Eggie D. Ratcliff | 35 | wife | — | Kentucky |
| 64 | Ewert C. Ratcliff | 12 | son | — | Kentucky |
| 65 | Harry J. Ratcliff | 5 | son | — | Kentucky |
| 66 | Harry Jr. Ratcliff | 2 | son | — | Kentucky |
| 67 | Oakil D. Collier | 34 | Head | Mining | Kentucky |
| 68 | Oakie Jr. Collier | 13 | son | — | Kentucky |
| 69 | Denver L. Collier | 11 | son | — | Kentucky |
| 70 | Mary Lou Collier THIS PERSON | 10 | daughter | — | Kentucky |
| 71 | Eugene Collier | 8 | son | — | Kentucky |
| 72 | Ida Collier | 65 | Mother | — | Kentucky |
| 73 | John D. Lawson | 64 | Head | Mining | Tennessee |
| 74 | Ellen Lawson | 57 | wife | — | Tennessee |
| 75 | Loraine Lawson | 16 | daughter | — | Kentucky |
| 76 | Marion Davis | 51 | son-in-law | Mining | Kentucky |
| 77 | Mary Bell Davis | 30 | daughter | — | Kentucky |
| 78 | Ira Davis | 13 | grand-child | — | Kentucky |
| 79 | Bobby D. Moore | 11 | grand-child | — | Kentucky |
| 80 | Erie Moore | 9 | grand-son | — | 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)