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Mary Mckenzie — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lucas, Ohio
Our Model Tree links this Mary Mckenzie across the 1930 and 1940 US Censuses in Lucas, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 2
b. ~1928
Female
Daughter
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lucas, Ohio |
| Surname | McKenzie |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Minnesota |
| Additional Details | |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Sylvania Village |
| Est. Birth Year | ~1928 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Russell Mckenzie | Head | — | 36 | ~1894 |
| Dorothy Mckenzie | Daughter | — | 3 | ~1927 |
| Jennie Mckenzie | Other | — | 32 | ~1898 |
| Russell Mckenzie | Son | — | 9 | ~1921 |
| Arthur Mckenzie | Son | — | 12 | ~1918 |
| Ralph Mckenzie | Son | — | 4 | ~1926 |
| Mary Mckenzie | Daughter | — | 2 | ~1928 |
Census Appearances
1930
Lucas, Ohio
Daughter, age 2
Lucas, Ohio · implied b. ~1928 — 7 household members
| Surname | McKenzie |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Minnesota |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Daughter, age 12
Lucas-County, Ohio · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mac Kenzie |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lucas |
| Class of Worker | 0 |
| Highest Grade | S 5 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 2 · b. ~1928 · Ohio
★ You are viewing this record
Sibling
Russell Mckenzie
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mckenzie
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Mckenzie
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Mckenzie
Sibling · 1930 · age 4
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 — Lucas, Ohio
Open full size
1930 US Federal Census — Lucas, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1832:1024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold W. Comstock | 44 | Head | Manager | Ohio |
| 2 | C. Belle Comstock | 41 | Wife-H | — | Ohio |
| 3 | Cathryn M. Comstock | 14 | Daughter | — | Ohio |
| 4 | Carl E. Comstock | 13 | Son | — | Ohio |
| 5 | Lawrence W. Urckitz | 50 | Head | — | Michigan |
| 6 | Edna C. Urckitz | 43 | Wife-H | — | Ohio |
| 7 | Park Wagenlander | 43 | Head | Buyer | Michigan |
| 8 | Mary J. Wagenlander | 44 | Wife-H | — | Michigan |
| 9 | Bruce Wagenlander | 18 | Son | — | Ohio |
| 10 | Jane N. Wagenlander | 6 | Daughter | — | Ohio |
| 11 | Lois Bickelhaupt | 27 | Lodger | Teacher | Ohio |
| 12 | Henry R. Smith | 63 | Head | Laborer | Ohio |
| 13 | Mary E. Smith | 60 | Wife-H | — | New York |
| 14 | Minnie A. Gries | 68 | Head | — | Indiana |
| 15 | William W. Bullette | 29 | Head | Engineer | Ohio |
| 16 | Octa M. Bullette | 25 | Wife-H | — | Michigan |
| 17 | Orpha M. Bullette | 6 | Daughter | — | Michigan |
| 18 | Farchen D. Bullette | 4 | Daughter | — | Ohio |
| 19 | Louis E. Power | 48 | Head | Foreman | Ohio |
| 20 | Jennie E. Power | 48 | Wife-H | — | Ohio |
| 21 | Aileen M. Power | 23 | Daughter | Bookkeeper | Ohio |
| 22 | Lois E. Power | 21 | Daughter | Servant | Ohio |
| 23 | Louis G. Power | 19 | Son | Carpenter | Ohio |
| 24 | Phillip R. Power | 16 | Son | — | Ohio |
| 25 | Hattie J. Power | 11 | Daughter | — | Ohio |
| 26 | Miriam A. Power | 8 | Daughter | — | Ohio |
| 27 | Robert A. Power | 5 | Son | — | Ohio |
| 28 | Wardner M. Morris | 40 | Head | Mortician | Ohio |
| 29 | Rowena L. Morris | 33 | Wife-H | — | Ohio |
| 30 | Gerald A. Morris | 10 | Son | — | Ohio |
| 31 | John L. Waters | 49 | Head | Caretaker | Canada-English |
| 32 | Mary Waters | 55 | Wife-H | — | Canada-English |
| 33 | Wilbur C. Waters | 20 | Son | Laborer | Canada-English |
| 34 | Frederick E. Brint | 45 | Head | Manager | Ohio |
| 35 | Vern Brint | 46 | Wife-H | — | Michigan |
| 36 | Theodore G. Reger | 35 | Head | Manager | Ohio |
| 37 | Ursula A. Reger | 30 | Wife-H | — | Ohio |
| 38 | Paul A. Reger | 3 | Son | — | Ohio |
| 39 | Russell S. Mckenzie | 36 | Head | Farmer | Wisconsin |
| 40 | Jennie Mckenzie | 32 | Wife-H | — | Minnesota |
| 41 | Arthur S. Mckenzie | 12 | Son | — | Washington |
| 42 | Russell G. Mckenzie | 9 | Son | — | Ohio |
| 43 | Ralph E. Mckenzie | 4 | Son | — | Indiana |
| 44 | Dorothy M. Mckenzie | 3 | Daughter | — | Ohio |
| 45 | Mary J. Mckenzie THIS PERSON | 2 | Daughter | — | Ohio |
| 46 | Thomas E. Bell | 77 | Head | Laborer | Ohio |
| 47 | Mary E. Bell | 71 | Wife-H | — | Ohio |
| 48 | Dorothy L. Bauman | 27 | Daughter | Assistant | Ohio |
| 49 | Lee Ann Bauman | 1 | Granddaughter | — | Ohio |
| 50 | Charles F. Stahl | 59 | Head | Laborer | Ohio |
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)