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John Keating — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this John Keating across the 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Keating |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Radio Repairing |
| Industry | at home/Radio shop |
| Class of Worker | PW |
| Hours Worked | 2 |
| Income (1939) | 468 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Radio Repairing |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Robert Keating | Son | — | 19 | ~1921 |
| Delores Keating | Daughter | — | 23 | ~1917 |
| Leah Keating | Head | — | 45 | ~1895 |
| Richard Keating | Son | — | 15 | ~1925 |
| John Keating | Son | — | 21 | ~1919 |
| Thomas Keating | Son | — | 17 | ~1923 |
Census Appearances
1930
Mercer, New …
Son, age 11
Mercer, New Jersey · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keating |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Son, age 21
Mercer-County, New Jersey · implied b. ~1919 — 6 household members
| Surname | Keating |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | Radio Repairing |
| Industry | at home/Radio shop |
| Class of Worker | PW |
| Hours Worked | 2 |
| Income (1939) | 468 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Keating across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Keating
Son · 1940 · age 21 · b. ~1919 · New Jersey
★ You are viewing this record
Sibling
Thomas Keating
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Keating
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Keating
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Keating
Sibling · 1940 · age 23
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 — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02434-00231)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leah O Keating | 45 | Head | — | England |
| 2 | Delores Keating | 23 | daughter | Salesgirl | New Jersey |
| 3 | John Keating THIS PERSON | 21 | son | Radio Repairing | New Jersey |
| 4 | Robert Keating | 19 | son | Counter Boy | New Jersey |
| 5 | Thomas Keating | 17 | son | Masonary Work | New Jersey |
| 6 | Richard Keating | 15 | son | — | New Jersey |
| 7 | John Hanna | 35 | Head | Lock Fitter | New Jersey |
| 8 | Mable Hanna | 32 | wife | — | Virginia |
| 9 | Hollis Hanna | 13 | son | — | New Jersey |
| 10 | Ethel Hanna | 8 | daughter | — | New Jersey |
| 11 | Harry Canning | 36 | brother in law | Inspector | Pennsylvania |
| 12 | Laura Canning | 31 | sister in law | — | New Jersey |
| 13 | Margaret Canning | 6 | niece | — | New Jersey |
| 14 | Barbara Canning | 2 | niece | — | New Jersey |
| 15 | Walter S. Parke | 42 | Head | Fireman | New Jersey |
| 16 | Ella Parke | 43 | wife | — | New Jersey |
| 17 | Audrey Parke | 19 | daughter | Final Checker | New Jersey |
| 18 | May Parke | 70 | mother | — | New Jersey |
| 19 | Sarah Singafoss | 44 | Head | — | Ireland |
| 20 | Margaret Singafoss | 20 | daughter | Clerk | New Jersey |
| 21 | Charles P. South | 50 | Head | Trolley Conductor | Pennsylvania |
| 22 | Sara South | 50 | wife | — | Pennsylvania |
| 23 | Anna South | 24 | daughter | Shipping Clerk | Pennsylvania |
| 24 | Iona South | 22 | daughter | Shipping Clerk | Pennsylvania |
| 25 | Adline South | 19 | daughter | Shipping Clerk | Pennsylvania |
| 26 | Charles Jr South | 11 | son | — | New Jersey |
| 27 | Joseph Scullin | 28 | Head | Carpenter | New Jersey |
| 28 | Helen Scullin | 25 | wife | Wrapper | New Jersey |
| 29 | Constance Scullin | 5 | daughter | — | New Jersey |
| 30 | Joseph Allen | 47 | Head | Carpenter | New Jersey |
| 31 | Ethel Allen | 45 | wife | — | New Jersey |
| 32 | William J Allen | 25 | son | Truck Driver | New Jersey |
| 33 | Minerva Allen | 20 | daughter | Typist | New Jersey |
| 34 | John L Allen | 24 | son | Machinist | New Jersey |
| 35 | Rosaline Allen | 21 | daughter in law | Wrapper | New Jersey |
| 36 | John W. Allen | 3 | grandson | — | New Jersey |
| 37 | Annie E Allen | 68 | mother | — | New Jersey |
| 38 | Frank H. Cooper | 55 | Head | Officer | New Jersey |
| 39 | Gertrude Cooper | 55 | wife | — | England |
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)