WF
William Frederick — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bucks, Pennsylvania
Our Model Tree links this William Frederick across the 1930 and 1940 US Censuses in Bucks, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 9-person household.
Age 46
b. ~1884
Male
Head
Born: New Jersey
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Bucks, Pennsylvania |
| Surname | Frederick |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 23 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | brakeman |
| Industry | steam railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Brakeman |
| Township / Ward | Morrisville Town |
| Est. Birth Year | ~1884 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Harry Frederick | Son | — | 18 | ~1912 |
| Edwin Frederick | Son | — | 16 | ~1914 |
| Sarah Frederick | Daughter | — | 11 | ~1919 |
| Florence Frederick | Spouse | — | 40 | ~1890 |
| William Frederick | Head | — | 46 | ~1884 |
| William Frederick | Son | — | 22 | ~1908 |
| Francis Frederick | Daughter | — | 11 | ~1919 |
| Robert Frederick | Son | — | 6 | ~1924 |
| Virginia Frederick | Daughter | — | 4 | ~1926 |
Census Appearances
1930
Bucks, Pennsylvania
Head, age 46
Bucks, Pennsylvania · implied b. ~1884 — 9 household members
| Surname | Frederick |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 23 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | brakeman |
| Industry | steam railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Bucks-County, Pennsylvania
Head, age 56
Bucks-County, Pennsylvania · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | William W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Morrisville Boro |
| 1935 Residence (County) | Bucks |
| Occupation | Laborer |
| Industry | W.P.A. Drainage project |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 511 |
| Highest Grade | 8 |
| 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 William Frederick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Frederick
Head · 1930 · age 46 · b. ~1884 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Bucks, Pennsylvania
Open full size
1930 US Federal Census — Bucks, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2008:0101)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William H. Frederick THIS PERSON | 46 | Head | Brakeman | New Jersey |
| 2 | Florence Frederick | 40 | Wife | None | New York|New Jersey |
| 3 | William G. Frederick | 22 | Son | Shipping Clerk | New Jersey |
| 4 | Harry Frederick | 18 | Son | Mechanic | New Jersey |
| 5 | Edwin A. Frederick | 16 | Son | Delivery Boy | New Jersey |
| 6 | Francis M. Frederick | 11 | Daughter | None | Pennsylvania |
| 7 | Sarah M. Frederick | 11 | Daughter | None | Pennsylvania |
| 8 | Robert Frederick | 6 | Son | None | Pennsylvania |
| 9 | Virginia Frederick | 4 | Daughter | None | Pennsylvania |
| 10 | Bernard Maguire | 57 | Head | Watchman | Pennsylvania |
| 11 | Elizabeth Maguire | 47 | Wife | None | Pennsylvania |
| 12 | John V. Maguire | 23 | Son | Laborer | Pennsylvania |
| 13 | Frank J. Maguire | 20 | Son | None | Pennsylvania |
| 14 | Helen Catherine Maguire | 18 | Daughter | None | Pennsylvania |
| 15 | Margaret Maguire | 16 | Daughter | None | Pennsylvania |
| 16 | John A. Johnson | 38 | Head | Laborer | Sweden |
| 17 | Mary Johnson | 40 | Wife | None | Finland |
| 18 | John A. Johnson | 11 | Son | None | Pennsylvania |
| 19 | Edwin Johnson | 10 | Son | None | Pennsylvania |
| 20 | Robert Johnson | 7 | Son | None | Pennsylvania |
| 21 | Arthur E. Johnson | 3 | Son | None | Pennsylvania |
| 22 | Charles E. Habel | 43 | Head | Carpenter | Pennsylvania |
| 23 | Ida M. Habel | 37 | Wife | None | Pennsylvania |
| 24 | Robert W. Habel | 11 | Son | None | Pennsylvania |
| 25 | Joseph Walter | 42 | Head | Engineer | Switzerland |
| 26 | Emma Walter | 37 | Wife | None | Pennsylvania |
| 27 | Alma Walter | 11 | Daughter | None | New York |
| 28 | Joseph Walter | 4 | Son | None | Pennsylvania |
| 29 | Frank Meszaros | 30 | Head | Laborer | Hungary |
| 30 | Mary Meszaros | 21 | Wife | None | Hungary |
| 31 | Joseph C. Lane | 47 | Head | Carpenter | England |
| 32 | William F. Lane | 18 | Son | None | England |
| 33 | William Nimon | None | Head | Yardmaster | Pennsylvania |
| 34 | Sophia Nimon | None | Wife | None | Pennsylvania |
| 35 | William P. Nimon | 3 | Son | None | Pennsylvania |
| 36 | Eleanor E. Nimon | 1 | Daughter | None | Pennsylvania |
| 37 | Alex Pthel | 37 | Head | Carpenter | Poland |
| 38 | Mary N. Pthel | 47 | Wife | None | Austria |
| 39 | Theodore Pthel | 21 | Son | Carpenter | Pennsylvania |
| 40 | Joseph Zentes | 37 | Head | Finisher | Germany |
| 41 | Rose Zentes | 42 | Wife | None | Hungary |
| 42 | Anna J. Zentes | 21 | Daughter | Waitress | New Jersey |
| 43 | William J. Zentes | 20 | Son | Waiter | New Jersey |
| 44 | Rose M. Zentes | 17 | Daughter | None | New Jersey |
| 45 | Joseph M. Zentes | 9 | Son | None | New Jersey |
| 46 | Helen F. Zentes | 7 | Daughter | None | Pennsylvania |
| 47 | Stefan Denko | 39 | Head | Laborer | Poland |
| 48 | Eva Denko | 34 | Wife | None | Poland |
| 49 | Peter Denko | 15 | Son | None | New Jersey |
| 50 | John Denko | 14 | Son | None | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)