JD
John Dempsey — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Northampton, Pennsylvania
Our Model Tree links this John Dempsey across the 1910 and 1920 US Censuses in Northampton, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 7-person household.
Age 11
b. ~1909
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Northampton, Pennsylvania |
| Surname | Dempsey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Additional Details | |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Bethlehem City |
| Est. Birth Year | ~1909 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Johnson | Other | — | 17 | ~1903 |
| James Dempsey | Son | — | 5 | ~1915 |
| John Dempsey | Head | — | 40 | ~1880 |
| Thomas Dempsey | Son | — | 8 | ~1912 |
| John Dempsey | Son | — | 11 | ~1909 |
| Florence Dempsey | Spouse | — | 33 | ~1887 |
| Catherine Dempsey | Daughter | — | 2 | ~1918 |
Census Appearances
1910
Northampton, Pennsylvania
Son, age 2
Northampton, Pennsylvania · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | John J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Northampton, Pennsylvania
Son, age 11
Northampton, Pennsylvania · implied b. ~1909 — 7 household members
| Surname | Dempsey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Dempsey across 2 US Census years (1910 and 1920) in Northampton, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Dempsey
Son · 1920 · age 11 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Thomas Dempsey
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dempsey
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Dempsey
Sibling · 1920 · age 2
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
1920 US Federal Census — Northampton, Pennsylvania
Open full size
1920 US Federal Census — Northampton, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1608unit:0238)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry Moyer | 26 | Lodger | Machinist | Pennsylvania |
| 2 | John Johnson | 20 | Lodger | Helper | Pennsylvania |
| 3 | John Mackenzie | 27 | Lodger | Machinist | Pennsylvania |
| 4 | John Dempsey | 40 | Head | Superintendent | Ireland |
| 5 | Florence Dempsey | 33 | Wife | — | Canada |
| 6 | John Dempsey THIS PERSON | 11 | Son | — | Pennsylvania |
| 7 | Thomas Dempsey | 8 | Son | — | Pennsylvania |
| 8 | James Dempsey | 5 | Son | — | Pennsylvania |
| 9 | Catherine Dempsey | 2 | Daughter | — | Pennsylvania |
| 10 | Catherine Johnson | 17 | Servant | Servant | Pennsylvania |
| 11 | John D Shelley | 49 | Head | Laborer | Ireland |
| 12 | Margaret Shelley | 48 | Wife | — | Ireland |
| 13 | Stephen M Corah | 30 | Head | Machinist | Austria-Hungary |
| 14 | Mary E Corah | 30 | Wife | — | Pennsylvania |
| 15 | Mary Corah | 3 | Daughter | — | Pennsylvania |
| 16 | Joseph Osech | 32 | Head | Electrician | Pennsylvania |
| 17 | Mary Osech | 29 | Wife | — | Pennsylvania |
| 18 | Francis Osech | 8 | Son | — | Pennsylvania |
| 19 | Christian F Reidley | 69 | Head | Merchant | Germany |
| 20 | Emma C Reidley | 58 | Wife | — | Pennsylvania |
| 21 | John W Reidley | 39 | Son | Salesman | Pennsylvania |
| 22 | Frederick S Reidley | 33 | Son | Salesman | Pennsylvania |
| 23 | George Brumm | 28 | Son-in-law | Helper | Pennsylvania |
| 24 | Margaret Brumm | 26 | Daughter | — | Pennsylvania |
| 25 | Frank B Martreins | 35 | Head | Secretary | New Jersey |
| 26 | Mary L Martreins | 34 | Wife | — | Pennsylvania |
| 27 | George R Wilhelm | 32 | Brother-in-law | Foreman | Pennsylvania |
| 28 | Harry L Doke | 36 | Head | Cashier | Pennsylvania |
| 29 | Bessie C Doke | 35 | Wife | — | Pennsylvania |
| 30 | Harold B Doke | 13 | Son | — | Pennsylvania |
| 31 | Dorothy G Doke | 5 | Daughter | — | Pennsylvania |
| 32 | Robert L Doke | 3 | Son | — | Pennsylvania |
| 33 | Stephen H Doke | 47 | Brother | Laborer | Pennsylvania |
| 34 | Raymond M Okenshage | 39 | Head | Salesman | Pennsylvania |
| 35 | Lillie J Okenshage | 50 | Wife | — | Pennsylvania |
| 36 | Vesta Stayer | 50 | Lodger | Seamstress | Pennsylvania |
| 37 | Adam Petriken | 73 | Head | Merchant | Pennsylvania |
| 38 | Emma Petriken | 59 | Wife | — | Pennsylvania |
| 39 | Margaret Paul | 19 | Daughter | Stenographer | Pennsylvania |
| 40 | Amos Salanter | 39 | Head | Weaver | Poland |
| 41 | Theresa Salanter | 34 | Wife | — | Poland |
| 42 | Amos Salanter | 9 | Son | — | Poland |
| 43 | Herbert Salanter | 7 | Son | — | Poland |
| 44 | Irene Salanter | 4 | Daughter | — | Pennsylvania |
| 45 | Robert Salanter | 1 | Son | — | Pennsylvania |
| 46 | Frank Konroad | 38 | Head | Laborer | Hungary |
| 47 | Mary Konroad | 35 | Wife | — | Hungary |
| 48 | Frank Konroad | 13 | Son | — | Hungary |
| 49 | Julia Konroad | 11 | Daughter | — | Hungary |
| 50 | Alfred Konroad | 9 | Son | — | Hungary |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)