RK
Ruby King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tuscaloosa-County, Alabama
Our Model Tree links this Ruby King across the 1920, 1930 and 1940 US Censuses in Tuscaloosa-County, Alabama (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tuscaloosa-County, Alabama |
| Surname | King |
| Given Name | Ruby H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Tuscaloosa |
| 1935 Residence (County) | Tuscaloosa |
| Additional Details | |
| Occupation | Teacher |
| Industry | County School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1349 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Teacher |
| Township / Ward | Tuscaloosa |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruby | Age | Birth yr |
|---|---|---|---|---|
| John King | Son | — | 25 | ~1915 |
| Mamie King | Head | — | 60 | ~1880 |
| Ruby King | Daughter | — | 27 | ~1913 |
| Merrie King | Daughter | — | 28 | ~1912 |
Census Appearances
1920
Tuscaloosa, Alabama
Daughter, age 8
Tuscaloosa, Alabama · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ruby H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Tuscaloosa, Alabama
Daughter, age 20
Tuscaloosa, Alabama · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Alabama |
| Age at First Marriage | 20 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Alabama |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Tuscaloosa-County, Alabama
Daughter, age 27
Tuscaloosa-County, Alabama · implied b. ~1913 — 4 household members
| Surname | King |
| Given Name | Ruby H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Tuscaloosa |
| 1935 Residence (County) | Tuscaloosa |
| Occupation | Teacher |
| Industry | County School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1349 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| 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 Ruby King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John King (~0.92 confidence) and father John King (~0.92 confidence) and mother Mamie King (~0.92 confidence) and mother Mattie King (~0.92 confidence) and mother Mattie King (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John King
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John King
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mamie King
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Mattie King
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mattie King
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruby King
Daughter · 1940 · age 27 · b. ~1913 · Alabama
★ You are viewing this record
Sibling
Merrie King
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John King
Sibling · 1940 · age 25
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 — Tuscaloosa-County, Alabama
Open full size
1940 US Federal Census — Tuscaloosa-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00085-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Allen | 28 | Head | Janitor | Alabama |
| 42 | Lillian Allen | 28 | Wife | Cook | Alabama |
| 43 | Willie Jean Allen | 5 | Daughter | — | Alabama |
| 44 | Ollie Meacham | 22 | Roomer | Maid | Alabama |
| 45 | Emmet James Allen | 5 | Son | — | Alabama |
| 46 | Pearl Wilkins | 41 | Head | Teacher | Alabama |
| 47 | James Wilkins | 21 | Son | — | Alabama |
| 48 | Henrietta Wilkins | 16 | Daughter | — | Alabama |
| 49 | John D. Burton | 37 | Head | Title Mechanic | Alabama |
| 50 | Ella Pearl Burton | 35 | Wife | Teacher | Alabama |
| 51 | Johnny Pearl Burton | 12 | Daughter | — | Alabama |
| 52 | Fred Burton | 8 | Son | — | Alabama |
| 53 | John Cook | 58 | Head | Tile Worker | Alabama |
| 54 | Nancy Cook | 53 | Wife | Janitor | Alabama |
| 55 | Fred Kennedy | 34 | Head | Laundress | Alabama |
| 56 | Lola Kennedy | 32 | Wife | Cleaner | Alabama |
| 57 | Lurania Butler | 12 | Niece | Cook | Alabama |
| 58 | Mamie F. King | 60 | Head | — | Alabama |
| 59 | Merrie J. King | 28 | Daughter | Teacher | Alabama |
| 60 | Ruby H. King THIS PERSON | 27 | Daughter | Teacher | Alabama |
| 61 | John L. King | 25 | Son | Teacher | Alabama |
| 62 | John Jr. Cook | 29 | Head | Cleaner | Alabama |
| 63 | Marie Cook | 26 | Wife | Maid | Alabama |
| 64 | Gloria Mae White | 8 | StepDaughter | — | Alabama |
| 65 | Maxine White | 7 | StepDaughter | — | Alabama |
| 66 | Oliver Pullum | 47 | Head | Mechanic | Alabama |
| 67 | Alma Pullum | 33 | Wife | Cook | Alabama |
| 68 | Willie Mae Davis | 25 | Cousin | — | Alabama |
| 69 | Sam Rudolph | 40 | Head | Miner | Maryland |
| 70 | Henry Martin | 32 | Head | — | Alabama |
| 71 | Annie Martin | 33 | Wife | Cook | Alabama |
| 72 | Essie Martin | 10 | Daughter | — | Alabama |
| 73 | Lucile Knox | 19 | Sister | — | Alabama |
| 74 | Rosie Mae Davis | 14 | Niece | — | Alabama |
| 75 | Mary Hawkins | 40 | Head | Maid | Alabama |
| 76 | Roberta Johnston | 19 | Daughter | Maid | Alabama |
| 77 | Virginia Mcelraith | 39 | Head | Housekeeper | Alabama |
| 78 | Frank Brown | 34 | Head | Team Driver | Alabama |
| 79 | Lila Brown | 21 | Wife | Laundry | Alabama |
| 80 | William Brown | 13 | Son | — | Alabama |
Pedigree Summary
Ruby + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)