JK
John Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Kerr across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 3-person household.
Age 66
b. ~1874
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Kerr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Grocer |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Grocer |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1874 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Kerr | Spouse | — | 66 | ~1874 |
| Margaret Kerr | Daughter | — | 33 | ~1907 |
| John Kerr | Head | — | 66 | ~1874 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 46
Philadelphia, Pennsylvania · implied b. ~1874 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Assistant |
| Industry | Retail Grocery |
| Class of Worker | E |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Philadelphia, Pennsylvania
Head, age 57
Philadelphia, Pennsylvania · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 28 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Head, age 66
Philadelphia-County, Pennsylvania · implied b. ~1874 — 3 household members
| Surname | Kerr |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia City |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Occupation | Grocer |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 2400 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Kerr across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Kerr
Head · 1940 · age 66 · b. ~1874 · Pennsylvania
★ 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03702-00672)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Kerr THIS PERSON | 66 | Head | Grocer | Ireland |
| 2 | Mary B. Kerr | 66 | Wife | — | Penna |
| 3 | Margaret B. Kerr | 33 | Daughter | Teacher | Penna |
| 4 | Russell Dotts | 42 | Head | Broker | Penna |
| 5 | Theresa Dotts | 42 | Wife | — | New York |
| 6 | Russell Jr. Dotts | 15 | Son | — | Penna |
| 7 | Lester G. Dotts | 14 | Son | — | Penna |
| 8 | Clement Dotts | 36 | Brother | — | Penna |
| 9 | Eleanor Binney | 72 | Mother-in-law | — | New York |
| 10 | Edward Ranckey | 49 | Head | Teacher | Penna |
| 11 | Virginia Ranckey | 47 | Wife | Assistant | New York |
| 12 | Lancy Hunter | 36 | Head | Salesman | New York |
| 13 | Blanche Hunter | 33 | Wife | — | Alabama |
| 14 | Lancy Hunter | 5 | Son | — | New York |
| 15 | Annie Pretty | 74 | Head | — | England |
| 16 | Miss G. Murphy | 65 | Sister | — | England |
| 17 | George Stalford | 59 | Head | Knitter | England |
| 18 | Violet Stalford | 59 | Wife | — | England |
| 19 | C. Lucretia Stalford | 35 | Daughter | School Teacher | Penna |
| 20 | Andrew C. Bergner | 42 | Head | Designer | Penna |
| 21 | Emilie Bergner | 44 | Wife | — | Penna |
| 22 | Marjorie Bergner | 18 | Daughter | Steno. | Penna |
| 23 | Andrew Jr. Bergner | 12 | Son | — | Penna |
| 24 | James Heirmann | 45 | Head | Salesman | California |
| 25 | Adele Heirmann | 36 | Wife | — | Penna |
| 26 | James Heirmann | 7 | Son | — | Penna |
| 27 | Thomas Heirmann | 3 | Son | — | Penna |
| 28 | Richard Heller | 31 | Head | Clerk | Carolina |
| 29 | Mildred Heller | 33 | Wife | — | New Jersey |
| 30 | Mildred Heller | 65 | Mother-in-law | — | Penna |
| 31 | Robert Lamont | 61 | Head | Own Business | Ireland |
| 32 | Cath. Lamont | 45 | Wife | — | Ireland |
| 33 | Isabel Craig | 45 | Head | — | Ireland |
| 34 | Robert Craig | 24 | Son | — | Penna |
| 35 | Helen Craig | 21 | Daughter | Secretar. | Penna |
| 36 | Betty Craig | 18 | Daughter | Steno. | Penna |
| 37 | Madge Craig | 17 | Daughter | — | Penna |
| 38 | B. Frank Craig | 13 | Son | — | Carolina |
| 39 | W. H. Rowe | 50 | Head | Broker | Penna |
| 40 | Audrey Rowe | 48 | Wife | — | Maryland |
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)