MM
Mary Mckenzie — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bibb, Alabama
Our Model Tree links this Mary Mckenzie across the 1930 and 1940 US Censuses in Bibb, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bibb, Alabama |
| Surname | McKenzie |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Precinct 1 |
| 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lula Mckenzie | Daughter | — | 16 | ~1914 |
| Robert Mckenzie | Son | — | 11 | ~1919 |
| Raymond Mckenzie | Son | — | 3 | ~1927 |
| Gladys Mckenzie | Spouse | — | 37 | ~1893 |
| Jerry Mckenzie | Son | — | 1 | ~1929 |
| Willie Mckenzie | Son | — | 5 | ~1925 |
| William Mckenzie | Son | — | 12 | ~1918 |
| Robert Mckenzie | Head | — | 44 | ~1886 |
| Ocie Mckenzie | Daughter | — | 8 | ~1922 |
| Mary Mckenzie | Daughter | — | 17 | ~1913 |
Census Appearances
1930
Bibb, Alabama
Daughter, age 17
Bibb, Alabama · implied b. ~1913 — 10 household members
| Surname | McKenzie |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Bibb-County, Alabama
Daughter, age 27
Bibb-County, Alabama · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKinzie |
| Given Name | Mary A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Bibb |
| Occupation | new worker |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Alabama |
| 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 Mckenzie across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckenzie
Daughter · 1930 · age 17 · b. ~1913 · Alabama
★ You are viewing this record
Sibling
Jerry Mckenzie
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mckenzie
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Mckenzie
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mckenzie
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ocie Mckenzie
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Mckenzie
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Mckenzie
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 — Bibb, Alabama
Open full size
1930 US Federal Census — Bibb, Alabama
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2usce:0616)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Tom Major | 72 | Head | — | Alabama |
| 52 | Lizzie Major | 52 | Wife | — | Alabama |
| 53 | Evelyn Major | 17 | Daughter | — | Alabama |
| 54 | Willie J. Major | 14 | Daughter | — | Alabama |
| 55 | Tommie Major | 45 | Head | — | Alabama |
| 56 | Robert Major | 19 | Son | Laborer | Alabama |
| 57 | Tommie Major | 16 | Son | Laborer | Alabama |
| 58 | Felix Rainey | 47 | Head | Laborer | Alabama |
| 59 | Lula Rainey | 35 | Wife | Laborer | Alabama |
| 60 | Jeff Hill | 37 | Head | Laborer | Alabama |
| 61 | Lula Hill | 30 | Wife | Laborer | Alabama |
| 62 | Willie Hill | 13 | Son | — | Alabama |
| 63 | Cecelia Hill | 12 | Daughter | — | Alabama |
| 64 | Lois Hill | 7 | Daughter | — | Alabama |
| 65 | Johnnie Hill | 4 | Son | — | Alabama |
| 66 | Virginia Hill | 1 | Daughter | — | Alabama |
| 67 | Charlie Smith | 54 | Head | Laborer | Alabama |
| 68 | Lula Smith | 47 | Wife | — | Alabama |
| 69 | Lula Smith | 18 | Daughter | — | Alabama |
| 70 | Murphy Smith | 12 | Son | — | Alabama |
| 71 | Jordan Simms | 28 | Head | — | Alabama |
| 72 | Lula Simms | 22 | Wife | Laborer | Alabama |
| 73 | George Rainey | 62 | Head | Farmer | Alabama |
| 74 | Elizabeth Rainey | 50 | Wife | — | Mississippi |
| 75 | David Rainey | 20 | Son | Laborer | Alabama |
| 76 | Doris G. Rainey | 12 | Daughter | — | Alabama |
| 77 | John Rainey | 42 | Head | Laborer | Alabama |
| 78 | Lucy Rainey | 35 | Wife | — | Alabama |
| 79 | Lucy Rainey | 16 | Daughter | — | Alabama |
| 80 | Lula B. Rainey | 13 | Daughter | — | Alabama |
| 81 | Mary Rainey | 9 | Daughter | — | Alabama |
| 82 | John Rainey | 6 | Son | — | Alabama |
| 83 | George Rainey | 3 | Son | — | Alabama |
| 84 | David Rainey | 34 | Head | Laborer | Alabama |
| 85 | Mary Rainey | 26 | Wife | — | Alabama |
| 86 | Rose Lee Rainey | 17 | Daughter | — | Alabama |
| 87 | Louise Rainey | 14 | Daughter | — | Alabama |
| 88 | William Rainey | 13 | Daughter | — | Alabama |
| 89 | Robert Mckenzie | 44 | Head | Laborer | Alabama |
| 90 | Gladys Mckenzie | 37 | Wife | — | Alabama |
| 91 | Mary Alice Mckenzie THIS PERSON | 17 | Daughter | — | Alabama |
| 92 | Lula Mckenzie | 16 | Daughter | — | Alabama |
| 93 | William L. Mckenzie | 12 | Son | — | Alabama |
| 94 | Robert Mckenzie | 11 | Son | — | Alabama |
| 95 | Ocie Mckenzie | 8 | Daughter | — | Alabama |
| 96 | Willie Mckenzie | 5 | Son | — | Alabama |
| 97 | Raymond Mckenzie | 3 | Son | — | Alabama |
| 98 | Jerry Mckenzie | 1 | Son | — | Alabama |
| 99 | Philly Mckenzie | 43 | Head | Laborer | Alabama |
| 100 | Lula Mckenzie | 38 | Wife | — | Alabama |
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)