JM
John Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this John Mcdonough across the 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | McDonough |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lakewood |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Lakewood |
| Est. Birth Year | ~1925 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Kathryn Mcdonough | Daughter | — | 22 | ~1918 |
| William Mcdonough | Head | — | 58 | ~1882 |
| Harvey Porter | Other | — | 41 | ~1899 |
| John Mcdonough | Son | — | 15 | ~1925 |
| William Mcdonough | Son | — | 21 | ~1919 |
| Robert Mcdonough | Son | — | 18 | ~1922 |
| Clara Mcdonough | Spouse | — | 51 | ~1889 |
Census Appearances
1930
Cuyahoga, Ohio
Son, age 5
Cuyahoga, Ohio · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Son, age 15
Cuyahoga-County, Ohio · implied b. ~1925 — 7 household members
| Surname | McDonough |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lakewood |
| 1935 Residence (County) | Cuyahoga |
| Industry | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| 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 John Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcdonough
Son · 1940 · age 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Robert Mcdonough
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Mcdonough
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonough
Sibling · 1940 · age 21
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-t0627-03054-00023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ellen Sawyer | 12 | daughter | — | Ohio |
| 2 | Willard Sawyer | 10 | son | — | Ohio |
| 3 | Bess M. O. Doran | 49 | Head | — | Ohio |
| 4 | Kathleen Doran | 11 | daughter | — | Ohio |
| 5 | Russell Mcconville | 46 | brother | Lee & Matter | Ohio |
| 6 | William Mcdonough | 58 | Head | Sales Engineer | New Jersey |
| 7 | Clara Mcdonough | 51 | wife | — | New York |
| 8 | Kathryn Mcdonough | 22 | daughter | — | Ohio |
| 9 | William Mcdonough | 21 | son | — | Ohio |
| 10 | Robert Mcdonough | 18 | son | — | Ohio |
| 11 | John Mcdonough THIS PERSON | 15 | son | — | Ohio |
| 12 | Harvey Porter | 41 | houseman | Houseman | Kentucky |
| 13 | John C. Hoffman | 51 | head | Wholesaler | Ohio |
| 14 | Elsa M. Hoffman | 50 | wife | — | Ohio |
| 15 | Jean Hoffman | 24 | daughter | Secretary | Ohio |
| 16 | Myrl Hoffman | 18 | daughter | — | Ohio |
| 17 | George Humphreys | 73 | head | Personnel Dept. | Ohio |
| 18 | Caroline Humphreys | 73 | wife | — | Ohio |
| 19 | Wilbur J. Wright | 51 | head | Manufacturers Agent | Ohio |
| 20 | Frances B. Wright | 52 | wife | — | Ohio |
| 21 | Betty Ann Wright | 20 | daughter | New Worker | New York |
| 22 | Sarah J. Townsend | 84 | mother-in-law | — | England |
| 23 | Thomas Mcfadden | 46 | head | General Agent | Pennsylvania |
| 24 | Margaret Mcfadden | 43 | wife | — | Pennsylvania |
| 25 | Thomas Mcfadden | 16 | son | — | Pennsylvania |
| 26 | John Mcfadden | 13 | son | — | Pennsylvania |
| 27 | Vincent Mcfadden | 12 | son | — | Pennsylvania |
| 28 | Walter C. Saunders | 72 | head | Insurance Agent | England |
| 29 | Mabel B. Saunders | 65 | wife | — | Ohio |
| 30 | Mary A. Libby | 83 | head | — | Canada-English |
| 31 | Eleanor Chandler | 60 | daughter | — | Ohio |
| 32 | Harry Valley | 27 | grandson | Chief Clerk | Ohio |
| 33 | Eleanor Valley | 29 | granddaughter | — | Ohio |
| 34 | Gaylord Valley | 3 | great grandson | — | Ohio |
| 35 | Terry Valley | 1 | great grandson | — | Ohio |
| 36 | Carrie L. Hoffman | 63 | head | — | Ohio |
| 37 | Harry L. Hoffman | 37 | son | Banker | Ohio |
| 38 | Mabel A. Hoffman | 32 | son | Saleslady | Ohio |
| 39 | Earl A. Williamson | 46 | head | Owner | Ohio |
| 40 | Amy K. Williamson | 46 | wife | Estimator | 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)