WF
William Frederick — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this William Frederick across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 5-person household.
Age 44
b. ~1886
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Frederick |
| Given Name | William G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Electrician |
| Industry | Electric Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $7000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Electrician |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1886 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Hazel Frederick | Daughter | — | 17 | ~1913 |
| William Frederick | Head | — | 44 | ~1886 |
| Ruth Frederick | Daughter | — | 20 | ~1910 |
| Bette Frederick | Daughter | — | 3 | ~1927 |
| Mathilda Frederick | Other | — | 37 | ~1893 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 33
Allegheny, Pennsylvania · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Piano Maker |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 44
Allegheny, Pennsylvania · implied b. ~1886 — 5 household members
| Surname | Frederick |
| Given Name | William G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Electrician |
| Industry | Electric Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $7000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 54
Allegheny-County, Pennsylvania · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Occupation | Piano mover |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 William Frederick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Frederick
Head · 1930 · age 44 · b. ~1886 · 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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1984:1034)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bert Opdyke | 55 | Head | Laborer | Indiana |
| 52 | Marcella M. Opdyke | 33 | Wife-H | — | Pennsylvania |
| 53 | Richard D. Opdyke | 1 | Son | — | Pennsylvania |
| 54 | Kenneth Layton | 20 | Boarder | Waiter | Indiana |
| 55 | Mattie S. Blakely | 45 | Head-H | — | Pennsylvania |
| 56 | John Blakely | 21 | Son | Laborer | Pennsylvania |
| 57 | Elizabeth M. Riley | 26 | Daughter | Clerk | Pennsylvania |
| 58 | Robert J. Riley | 2 | Grandson | — | Pennsylvania |
| 59 | John E. Carichner | 57 | Head | — | Pennsylvania |
| 60 | Lulu M. Carichner | 53 | Wife-H | — | Pennsylvania |
| 61 | Marie Carichner | 21 | Daughter | Stenographer | Pennsylvania |
| 62 | John E. Carichner | 19 | Son | Clerk | Pennsylvania |
| 63 | Rudolph Rosamyer | 59 | Head | Clerk | Pennsylvania |
| 64 | Anna M. Rosamyer | 45 | Wife-H | — | Pennsylvania |
| 65 | R. Frances Rosamyer | 16 | Daughter | — | Pennsylvania |
| 66 | William G. Frederick THIS PERSON | 44 | Head | Electrician | Pennsylvania |
| 67 | Mathilda L. Frederick | 37 | Wife-H | — | Pennsylvania |
| 68 | Ruth E. Frederick | 20 | Daughter | — | Pennsylvania |
| 69 | Hazel M. Frederick | 17 | Daughter | — | Pennsylvania |
| 70 | Bette Ruth Frederick | 3 | Daughter | — | Pennsylvania |
| 71 | Gaetano Seminatore | 27 | Head | Clerk | Italy |
| 72 | Helen L. Seminatore | 24 | Wife-H | — | Ohio |
| 73 | Charles J. Seminatore | 1 | Son | — | Pennsylvania |
| 74 | Louis H. Braun | 52 | Head | Machinist | Germany |
| 75 | Caroline Braun | 44 | Wife-H | — | Pennsylvania |
| 76 | Edward V. Braun | 26 | Son | — | West Virginia |
| 77 | Elmer L. Braun | 20 | Son | — | West Virginia |
| 78 | George L. Gordon | 37 | Head | Pipe-Fitter | Maryland |
| 79 | Janet Gordon | 42 | Wife-H | Seamstress | Maryland |
| 80 | Robert J. Gordon | 17 | Son | — | Pennsylvania |
| 81 | John Ringlebauch | 64 | Head | Laborer | West Virginia |
| 82 | John Jr. Ringlebauch | 29 | Son | Clerk | Pennsylvania |
| 83 | Clyde Ringlebauch | 29 | Son | Clerk | Pennsylvania |
| 84 | Everett Gardner | 26 | Head | Painter | West Virginia |
| 85 | Ohrena G. Gardner | 25 | Wife-H | — | West Virginia |
| 86 | Ada J. Gardner | 7 | Daughter | — | West Virginia |
| 87 | James E. Gardner | 5 | Son | — | West Virginia |
| 88 | Ralph Swager | 56 | Boarder | Conductor | Pennsylvania |
| 89 | John Mcmaster | 58 | Head | Inspector | Northern Ireland |
| 90 | Jennie E. Mcmaster | 54 | Wife-H | — | England |
| 91 | Margaret Mcmaster | 26 | Daughter | Stenographer | Pennsylvania |
| 92 | William Mcmaster | 24 | Son | Chauffeur | Pennsylvania |
| 93 | Henrietta E. Mcmaster | 19 | Daughter | Bookkeeper | Pennsylvania |
| 94 | Mildred M. Mcmaster | 16 | Daughter | — | Pennsylvania |
| 95 | Thomas G. Mcmaster | 8 | Son | — | Pennsylvania |
| 96 | William Jr. Mcmaster | 4 | Son | — | Pennsylvania |
| 97 | Anne E. Brown | 21 | Lodger | Saleslady | Pennsylvania |
| 98 | J. Raymond Lee | 22 | Lodger | Bridgeman | Kentucky |
| 99 | George Hulst | 57 | Lodger | Laborer | Northern Ireland |
| 100 | Minnie Likenfield | 37 | Head | Laborer | Pennsylvania |
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)