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James Mack — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this James Mack across the 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Mack |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lakewood City |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Lakewood 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Dolores Mack | Daughter | — | 6 | ~1934 |
| Joseph Mack | Head | — | 42 | ~1898 |
| Theodore Mack | Son | — | 5 | ~1935 |
| Marilyn Mack | Daughter | — | 7 | ~1933 |
| Joseph Mack | Son | — | 10 | ~1930 |
| Jane Mackin | Other | — | 17 | ~1923 |
| Kay Mack | Daughter | — | 1 | ~1939 |
| Lillian Mack | Spouse | — | 35 | ~1905 |
| James Mack | Son | — | 11 | ~1929 |
| Dorothy Mackin | Other | — | 31 | ~1909 |
Census Appearances
1930
Cuyahoga, Ohio
Son, age 2
Cuyahoga, Ohio · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Son, age 11
Cuyahoga-County, Ohio · implied b. ~1929 — 10 household members
| Surname | Mack |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lakewood City |
| 1935 Residence (County) | Cuyahoga |
| Highest Grade | 5 |
| 1935 Residence | Same House |
| 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 James Mack across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mack
Son · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Dolores Mack
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theodore Mack
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mack
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kay Mack
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Mack
Sibling · 1940 · age 7
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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03054-00524)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martin W. Hill | 39 | Head | Assistant Operations Chief Clerk | Ohio |
| 2 | Geraldine Hill | 34 | Wife | — | Ohio |
| 3 | Dona Hill | 8 | Daughter | — | Ohio |
| 4 | James Hill | 5 | Son | — | Ohio |
| 5 | Genevieve Yoder | 24 | Sister-in-law | Nurse | Ohio |
| 6 | Clinton A. Bach | 45 | Head | Office Manager | Ohio |
| 7 | Hazel Bach | 42 | Wife | — | Pennsylvania |
| 8 | Dolores Bach | 17 | Daughter | — | Colorado |
| 9 | Gerhard Felgenhauer | 66 | Head | Die Setter | Germany |
| 10 | Mary Felgenhauer | 63 | Wife | — | Ohio |
| 11 | Joseph Felgenhauer | 31 | Son | Driver | Ohio |
| 12 | Gertrude Felgenhauer | 22 | Daughter | Industrial Nurse | Ohio |
| 13 | Joseph Mack | 42 | Head | Salesman | Ohio |
| 14 | Lillian Mack | 35 | Wife | — | Ohio |
| 15 | James Mack THIS PERSON | 11 | Son | — | Ohio |
| 16 | Joseph Mack | 10 | Son | — | Ohio |
| 17 | Marilyn Mack | 7 | Daughter | — | Ohio |
| 18 | Dolores Mack | 6 | Daughter | — | Ohio |
| 19 | Theodore Mack | 5 | Son | — | Ohio |
| 20 | Kay Mack | 1 | Daughter | — | Ohio |
| 21 | Dorothy Mackin | 31 | Sister-in-law | Clerk Payroll | Ohio |
| 22 | Jane Mackin | 17 | Niece | — | Ohio |
| 23 | Charles Mesarch | 66 | Head | Operator | Ohio |
| 24 | Olive E. Mesarch | 48 | Wife | — | Ohio |
| 25 | Richard Hussey | 51 | Brother-in-law | Clerk | Ohio |
| 26 | Fred Hussey | 45 | Brother-in-law | Clerk | Ohio |
| 27 | Thomas A. Woodward | 61 | Head | Accountant | Ohio |
| 28 | Louise Woodward | 64 | Wife | — | Ohio |
| 29 | Harold Woodward | 31 | Son | Deck Watch | Ohio |
| 30 | Alfred Woodward | 29 | Son | Accountant | Ohio |
| 31 | Horace B. Mitchell | 60 | Head | Bridge Operator | Ohio |
| 32 | Mary Mitchell | 55 | Wife | — | Ohio |
| 33 | Violet Mitchell | 27 | Daughter | Nurse | Ohio |
| 34 | Joseph Deutsch | 42 | Lodger | — | Ohio |
| 35 | Louis J. Roehm | 44 | Head | Bookkeeper | Ohio |
| 36 | Helen Roehm | 40 | Wife | — | Ohio |
| 37 | Robert Roehm | 21 | Son | Bookkeeper | Ohio |
| 38 | James Roehm | 19 | Son | Clerk | Ohio |
| 39 | Barbara Roehm | 10 | Daughter | — | Ohio |
| 40 | Louis Manola | 52 | Head | Pressman | Ohio |
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)