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John Mack — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rowan-County, North Carolina
Our Model Tree links this John Mack across the 1930 and 1940 US Censuses in Rowan-County, North Carolina (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 10-person household.
Age 19
b. ~1921
Male
Son
Born: North Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rowan-County, North Carolina |
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | North Carolina |
| 1935 Residence (City) | Providence |
| 1935 Residence (County) | Rowan |
| Additional Details | |
| Occupation | Rock breaker |
| Industry | Quarry |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 454 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
| Occupation | Rock Breaker |
| Township / Ward | Providence |
| Est. Birth Year | ~1921 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Lennie Mack | Son | — | 13 | ~1927 |
| James Mack | Son | — | 5 | ~1935 |
| William Mack | Son | — | 14 | ~1926 |
| Bessie Mack | Spouse | — | 43 | ~1897 |
| Milton Mack | Son | — | 10 | ~1930 |
| Jessie Mack | Daughter | — | 7 | ~1933 |
| John Mack | Son | — | 19 | ~1921 |
| Lennie Mack | Head | — | 43 | ~1897 |
| Mildred Mack | Daughter | — | 10 | ~1930 |
| Samuel Mack | Son | — | 3 | ~1937 |
Census Appearances
1930
Erie, North …
Son, age 9
Erie, North Carolina · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1940
Rowan-County, North …
Son, age 19
Rowan-County, North Carolina · implied b. ~1921 — 10 household members
| Surname | Mack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | North Carolina |
| 1935 Residence (City) | Providence |
| 1935 Residence (County) | Rowan |
| Occupation | Rock breaker |
| Industry | Quarry |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 454 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
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 John Mack across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mack
Son · 1940 · age 19 · b. ~1921 · North Carolina
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Sibling
Jessie Mack
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Mack
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Mack
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lennie Mack
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mack
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Mack
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mack
Sibling · 1940 · age 14
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 — Rowan-County, North Carolina
Open full size
1940 US Federal Census — Rowan-County, North Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02968-01002)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida J. Brown | 62 | Wife | — | North Carolina |
| 42 | Lena P. Brown | 32 | Daughter | Teacher | North Carolina |
| 43 | Jennie Ritchie | 79 | Mother-in-law | — | North Carolina |
| 44 | Marvin Cauble | 27 | Head | Truck Driver | North Carolina |
| 45 | Bertha M. Cauble | 27 | Wife | — | North Carolina |
| 46 | Richard D. Cauble | 9 | Son | — | North Carolina |
| 47 | M. Glyn Cauble | 7 | Son | — | North Carolina |
| 48 | Margaret L. Cauble | 5 | Daughter | — | North Carolina |
| 49 | Paul J. Lyerly | 47 | Head | Timekeeper | North Carolina |
| 50 | Leona S. Lyerly | 44 | Wife | — | North Carolina |
| 51 | Paul J. Jr. Lyerly | 18 | Son | — | North Carolina |
| 52 | Albert Swink | 68 | Lodger | Farmer | North Carolina |
| 53 | Robert Robertson | 37 | Head | Stone Cutter | North Carolina |
| 54 | Fannie M. Robertson | 39 | Wife | — | North Carolina |
| 55 | James F. Robertson | 4 | Son | — | North Carolina |
| 56 | Allen W. Robertson | 2 | Son | — | North Carolina |
| 57 | M. Jane Lyerly | 77 | Head | — | North Carolina |
| 58 | H. Beatrice Lyerly | 15 | Granddaughter | — | North Carolina |
| 59 | L. Ray Cauble | 36 | Head | Carpenter | North Carolina |
| 60 | B. Evelyn Cauble | 35 | Wife | — | North Carolina |
| 61 | Ray E. Cauble | 7 | Son | — | North Carolina |
| 62 | Mary C. Cauble | 4 | Daughter | — | North Carolina |
| 63 | Cora L. Lyerly | 54 | Head | Teacher | North Carolina |
| 64 | Julia M. Lyerly | 50 | Sister | Teacher | North Carolina |
| 65 | P. Calvin Miller | 55 | Lodger | — | North Carolina |
| 66 | Lennie S. Mack | 43 | Head | Farmer | North Carolina |
| 67 | Bessie Mack | 43 | Wife | — | North Carolina |
| 68 | John Mack THIS PERSON | 19 | Son | Rock Breaker | North Carolina |
| 69 | William Mack | 14 | Son | — | North Carolina |
| 70 | Lennie Jr. Mack | 13 | Son | — | North Carolina |
| 71 | Milton Mack | 10 | Son | — | North Carolina |
| 72 | Mildred Mack | 10 | Daughter | — | North Carolina |
| 73 | Jessie L. Mack | 7 | Daughter | — | North Carolina |
| 74 | James R. Mack | 5 | Son | — | North Carolina |
| 75 | Samuel Mack | 3 | Son | — | North Carolina |
| 76 | D. Richard Cauble | 61 | Head | Farmer | North Carolina |
| 77 | E. M. Cauble | 58 | Wife | — | North Carolina |
| 78 | Ralph P. Cauble | 34 | Son | Carpenter | North Carolina |
| 79 | Claude M. Cauble | 22 | Son | Carpenter | North Carolina |
| 80 | M. Pauline Cauble | 17 | Daughter | Office | North Carolina |
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)