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Mary Gibbons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lauderdale-County, Alabama
Our Model Tree links this Mary Gibbons across the 1930 and 1940 US Censuses in Lauderdale-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lauderdale-County, Alabama |
| Surname | Gibbons |
| Given Name | Mary Lynn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Florence City |
| 1935 Residence (County) | Lauderdale |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same home |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Florence City |
| Est. Birth Year | ~1929 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Betty Gibbons | Daughter | — | 14 | ~1926 |
| Thomas Gibbons | Head | — | 45 | ~1895 |
| Robert Gibbons | Son | — | 3 | ~1937 |
| Dorothy Gibbons | Daughter | — | 7 | ~1933 |
| Florence Gibbons | Spouse | — | 43 | ~1897 |
| Mary Gibbons | Daughter | — | 11 | ~1929 |
| John Gibbons | Son | — | 11 | ~1929 |
Census Appearances
1930
Lauderdale, Alabama
Daughter, age
Lauderdale, Alabama · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibbons |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Lauderdale-County, Alabama
Daughter, age 11
Lauderdale-County, Alabama · implied b. ~1929 — 7 household members
| Surname | Gibbons |
| Given Name | Mary Lynn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Florence City |
| 1935 Residence (County) | Lauderdale |
| Highest Grade | 4 |
| 1935 Residence | Same home |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Gibbons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gibbons
Daughter · 1940 · age 11 · b. ~1929 · Alabama
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Sibling
John Gibbons
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Gibbons
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Gibbons
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gibbons
Sibling · 1940 · age 3
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 — Lauderdale-County, Alabama
Open full size
1940 US Federal Census — Lauderdale-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00050-00081)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Milton Lancaster | 27 | Head | Salesman | Alabama |
| 2 | Lucile Lancaster | 22 | Wife | Saleswoman | Alabama |
| 3 | Lena Killen | 44 | Head | Saleswoman | Alabama |
| 4 | Reba Killen | 42 | Husband | Salesman | Alabama |
| 5 | Corine Killen | 41 | Sister | — | Alabama |
| 6 | Bobbie Sue Killen | 15 | Daughter | — | Alabama |
| 7 | Wilcey Killen | 13 | Son | — | Alabama |
| 8 | Sharpe Killen | 71 | Father | — | Alabama |
| 9 | Robert Killen | 24 | Brother | Salesman | Alabama |
| 10 | Thomas Gibbons | 45 | Head | Plumber | Alabama |
| 11 | Florence Gibbons | 43 | Wife | — | Alabama |
| 12 | Betty Jane Gibbons | 14 | Daughter | — | Alabama |
| 13 | John David Gibbons | 11 | Son | — | Alabama |
| 14 | Mary Lynn Gibbons THIS PERSON | 11 | Daughter | — | Alabama |
| 15 | Dorothy Ann Gibbons | 7 | Daughter | — | Alabama |
| 16 | Robert Franklin Gibbons | 3 | Son | — | Alabama |
| 17 | Noble Downing | 29 | Head | Plumber | Alabama |
| 18 | Nellie Downing | 32 | Wife | — | Alabama |
| 19 | Richard O. Ford | 48 | Head | Manager | Tennessee |
| 20 | Jessie Ford | 47 | Wife | — | Wisconsin |
| 21 | Elizabeth Wagner | 76 | Mother | — | Tennessee |
| 22 | R. C. Underwood | 40 | Head | Painter | Alabama |
| 23 | Vona O. Underwood | 38 | Wife | — | Alabama |
| 24 | R. C. Jr. Underwood | 15 | Son | — | Alabama |
| 25 | J. N. Howard | 72 | Father-in-law | — | Alabama |
| 26 | J. C. Mason | 35 | Head | Truck Driver | Tennessee |
| 27 | Frances Mason | 19 | Wife | — | Alabama |
| 28 | Ray Gooch | 23 | Head | Tractor Driver | Alabama |
| 29 | Marion Gooch | 20 | Wife | — | Alabama |
| 30 | Charles J. Gooch | 1 | Son | — | Alabama |
| 31 | Edward Kennedy | 27 | Head | Salesman | Alabama |
| 32 | Zella Mae Kennedy | 24 | Wife | — | Tennessee |
| 33 | Frances Lee Kennedy | 3 | Daughter | — | Alabama |
| 34 | Laura Kennedy | 59 | Head | — | Alabama |
| 35 | Ray Kennedy | 25 | Son | Shipping Clerk | Alabama |
| 36 | Lillian Kennedy | 20 | Daughter | Saleswoman | Alabama |
| 37 | William H. Clark | 25 | Head | Machine Operator | Mississippi |
| 38 | Mallene Clark | 20 | Wife | — | Alabama |
| 39 | Albert H. Clark | 4 | Son | — | Alabama |
| 40 | Jane Clark | 2 | Daughter | — | Alabama |
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)