JM
John Murdock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this John Murdock across the 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Murdock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Machinist |
| Industry | Machine Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2080 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Machinist |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jacqueline Murdock | Daughter | — | 9 | ~1931 |
| John Murdock | Head | — | 39 | ~1901 |
| John Murdock | Son | — | 5 | ~1935 |
| Shirley Murdock | Daughter | — | 11 | ~1929 |
| Myrtle Murdock | Spouse | — | 37 | ~1903 |
| Ronald Murdock | Son | — | 3 | ~1937 |
Census Appearances
1930
Hamilton, Ohio
Head, age 28
Hamilton, Ohio · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murdoch |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Machinist |
| Industry | Milling Machine Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 24 |
| Radio Set | R |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Head, age 39
Hamilton-County, Ohio · implied b. ~1901 — 6 household members
| Surname | Murdock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | Machinist |
| Industry | Machine Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2080 |
| Highest Grade | No 8 |
| 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 John Murdock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Murdock
Head · 1940 · age 39 · b. ~1901 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03188-00068)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward H. Osterhaus | 24 | Son | Machinist | Ohio |
| 42 | Grace Osterhaus | 20 | Daughter | Stenographer | Ohio |
| 43 | Jack Osterhaus | 18 | Son | Machinist | Ohio |
| 44 | William Osterhaus | 13 | Son | — | Ohio |
| 45 | Albert L. Comer | 57 | Head | Stationary Engineer | Ohio |
| 46 | Mary B. Comer | 54 | Wife | — | Ohio |
| 47 | Albert H. Comer | 26 | Son | Collector | Ohio |
| 48 | Edward J. Gormley | 78 | Head | — | Ohio |
| 49 | Rose Gormley | 82 | Sister | — | Ohio |
| 50 | Edward J. Janszen | 49 | Head | Shipping Clerk | Ohio |
| 51 | Lillian Janszen | 50 | Wife | — | Ohio |
| 52 | Bernice Janszen | 14 | Daughter | — | Ohio |
| 53 | Wm. G. B. Binder | 47 | Head | Carpenter | Ohio |
| 54 | Eleanor Binder | 47 | Wife | — | Ohio |
| 55 | John Murdock THIS PERSON | 39 | Head | Machinist | Ohio |
| 56 | Myrtle D. Murdock | 37 | Wife | — | Ohio |
| 57 | Shirley Murdock | 11 | Daughter | — | Ohio |
| 58 | Jacqueline Murdock | 9 | Daughter | — | Ohio |
| 59 | John Allen Murdock | 5 | Son | — | Ohio |
| 60 | Ronald Murdock | 3 | Son | — | Ohio |
| 61 | Edward T. Bodis | 51 | Head | Court Reporter | Ohio |
| 62 | Elizabeth Bodis | 49 | Wife | — | Ohio |
| 63 | Isabel A. Bodis | 17 | Daughter | — | Ohio |
| 64 | Jeanne P. Bodis | 12 | Daughter | — | Ohio |
| 65 | Barbara Bodis | 8 | Daughter | — | Ohio |
| 66 | Howard J. Hartman | 34 | Head | Inspector | Ohio |
| 67 | Lillian Hartman | 33 | Wife | — | Kentucky |
| 68 | Patricia Hartman | 6 | Daughter | — | Ohio |
| 69 | Ronald Hartman | 4 | Son | — | Ohio |
| 70 | Thomas G. Burke | 56 | Head | Plasterer | New York |
| 71 | Blanche S. Burke | 56 | Wife | — | Ohio |
| 72 | Rose Burke | 14 | Son | — | Ohio |
| 73 | Herbert Einkhorn | 43 | Head | Paper Maker | Kentucky |
| 74 | Emma D. Einkhorn | 50 | Wife | Stock Worker | Ohio |
| 75 | Herbert Jr. Einkhorn | 17 | Son | — | Ohio |
| 76 | Jo Ann Einkhorn | 8 | Daughter | — | Ohio |
| 77 | Joseph E. Parrish | 34 | Head | Spray Painter | Ohio |
| 78 | Margaret Parrish | 33 | Wife | — | Ohio |
| 79 | Dolores Parrish | 5 | Daughter | — | 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)