JF
John Frederick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Broome-County, New York
Our Model Tree links this John Frederick across the 1930 and 1940 US Censuses in Broome-County, New York (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Broome-County, New York |
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Johnson City village |
| 1935 Residence (County) | Broome |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Home building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Carpenter |
| Township / Ward | Johnson City Village |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joseph Frederick | Son | — | 27 | ~1913 |
| Anna Frederick | Spouse | — | 49 | ~1891 |
| Andrew Frederick | Head | — | 49 | ~1891 |
| John Frederick | Son | — | 18 | ~1922 |
| Helen Frederick | Daughter | — | 21 | ~1919 |
| Pauline Frederick | Daughter | — | 10 | ~1930 |
| Sophia Frederick | Daughter | — | 13 | ~1927 |
| Edward Frederick | Son | — | 15 | ~1925 |
Census Appearances
1930
Broome, New …
Son, age 8
Broome, New York · implied b. ~1922 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Broome-County, New …
Son, age 18
Broome-County, New York · implied b. ~1922 — 8 household members
| Surname | Frederick |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Johnson City village |
| 1935 Residence (County) | Broome |
| Occupation | Carpenter |
| Industry | Home building |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Frederick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Frederick
Son · 1940 · age 18 · b. ~1922 · New York
★ You are viewing this record
Sibling
Joseph Frederick
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Frederick
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sophia Frederick
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Frederick
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Frederick
Sibling · 1940 · age 10
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 — Broome-County, New York
Open full size
1940 US Federal Census — Broome-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02503-00052)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Koppenberger | 32 | Head | Puller | Czechoslovakia |
| 42 | Helen Koppenberger | 36 | Wife | Heeling Dept | Czechoslovakia |
| 43 | Sylvia Koppenberger | 8 | Daughter | — | New York |
| 44 | Paul Koppenberger | 7 | Son | — | New York |
| 45 | Frank Majka | 42 | Head | Die Pounding | Poland |
| 46 | Caroline Majka | 42 | Wife | — | Poland |
| 47 | Josephine Majka | 21 | Daughter | Lacing | New York |
| 48 | Stanley Majka | 19 | Son | New Worker | New York |
| 49 | Amelia Majka | 15 | Daughter | — | New York |
| 50 | Walter Majka | 10 | Son | — | New York |
| 51 | Celia Majka | 8 | Daughter | — | New York |
| 52 | Julius Majka | 7 | Son | — | New York |
| 53 | Edward Majka | 5 | Son | — | New York |
| 54 | Dolores Majka | 2 | Daughter | — | New York |
| 55 | Alice A. O'Dell | 48 | Wife | Cook | New York |
| 56 | Albert F. O'Dell | 51 | Head | Stationary Fireman | New York |
| 57 | Harmon T. Christiana | 56 | Head | Carpenter | New York |
| 58 | Mildred Christiana | 51 | Wife | — | New York |
| 59 | Myrtle Christiana | 17 | Daughter | — | New York |
| 60 | Jean Christiana | 15 | Daughter | — | New York |
| 61 | James Christiana | 10 | Son | — | New York |
| 62 | Clyde Christiana | 4 | Son | — | New York |
| 63 | Ernest Welch | 35 | Head | Bed Lasting | Pennsylvania |
| 64 | Nellie Welch | 30 | Wife | — | Pennsylvania |
| 65 | Carl Welch | 10 | Son | — | New York |
| 66 | Carole Welch | 5 | Daughter | — | New York |
| 67 | Joseph Naurez | 34 | Head | Stitching | Germany |
| 68 | Ruth E. Naurez | 31 | Wife | Stitching | Pennsylvania |
| 69 | Donald J. Naurez | 5 | Son | — | New York |
| 70 | Andrew Frederick | 49 | Head | Floorman | Poland |
| 71 | Anna Frederick | 49 | Wife | — | Poland |
| 72 | Joseph Frederick | 27 | Son | Mill Worker | New York |
| 73 | Helen Frederick | 21 | Daughter | Waitress | New York |
| 74 | John Frederick THIS PERSON | 18 | Son | Carpenter | New York |
| 75 | Edward Frederick | 15 | Son | — | New York |
| 76 | Sophia Frederick | 13 | Daughter | — | New York |
| 77 | Pauline Frederick | 10 | Daughter | — | New York |
| 78 | Ray Williams | 38 | Head | Sole Laster | Pennsylvania |
| 79 | Gladys Williams | 35 | Wife | — | New York |
| 80 | Donald Williams | 16 | Son | — | New York |
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)