WF
William Frederick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cristobal-County, None
Our Model Tree links this William Frederick across the 1930 and 1940 US Censuses in Cristobal-County, None (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 8-person household.
Age 44
b. ~1896
Male
Head
Born: St. Lucia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cristobal-County, None |
| Surname | Frederick |
| Given Name | William G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 44 |
| Marital Status | Married |
| Birthplace | St. Lucia |
| 1935 Residence (City) | Silver City, Canal Zone |
| 1935 Residence (County) | Cristobal |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Seaman |
| Industry | Marine Division |
| Class of Worker | W |
| Hours Worked | 48 |
| Income (1939) | 470 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | st lucia |
| Occupation | Seaman |
| Township / Ward | Silver City Canal Zone |
| Est. Birth Year | ~1896 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Yvone Frederick | Daughter | — | 5 | ~1935 |
| Celina Frederick | Daughter | — | 12 | ~1928 |
| William Frederick | Head | — | 44 | ~1896 |
| Sylvia Frederick | Daughter | — | 9 | ~1931 |
| Ada Frederick | Spouse | — | 36 | ~1904 |
| Ivan Frederick | Son | — | 2 | ~1938 |
| Agnes Frederick | Daughter | — | 11 | ~1929 |
| William Frederick | Son | — | 3 | ~1937 |
Census Appearances
1930
None, None
Head, age 35
None, None · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fredericks |
| Given Name | William G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | St Lucia |
| Naturalization Status | Alien |
| Year of Immigration | 1914 |
| Father's Birthplace | St Lucia |
| Mother's Birthplace | St Lucia |
| Occupation | Seaman |
| Industry | Marine Div. |
| Class of Worker | 8980 |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 4 |
| Birthplace (normalized) | st lucia |
1940
Cristobal-County, None
Head, age 44
Cristobal-County, None · implied b. ~1896 — 8 household members
| Surname | Frederick |
| Given Name | William G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 44 |
| Marital Status | Married |
| Birthplace | St. Lucia |
| 1935 Residence (City) | Silver City, Canal Zone |
| 1935 Residence (County) | Cristobal |
| Naturalization Status | Alien |
| Occupation | Seaman |
| Industry | Marine Division |
| Class of Worker | W |
| Hours Worked | 48 |
| Income (1939) | 470 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | st lucia |
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 · 1940 · age 44 · b. ~1896 · None
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cristobal-County, None
Open full size
1940 US Federal Census — Cristobal-County, None
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-04642-01087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Eugene G Bell | 21 | Son | — | Canal Zone |
| 52 | William G Frederick THIS PERSON | 44 | Head | Seaman | St. Lucia |
| 53 | Ada J Frederick | 36 | Wife | — | Jamaica |
| 54 | Celina A Frederick | 12 | Daughter | — | Panama |
| 55 | Agnes L Frederick | 11 | Daughter | — | Panama |
| 56 | Sylvia E Frederick | 9 | Daughter | — | Panama |
| 57 | Yvone M Frederick | 5 | Daughter | — | Panama |
| 58 | William G (Jr) Frederick | 3 | Son | — | Panama |
| 59 | Ivan G Frederick | 2 | Son | — | Panama |
| 60 | Clarence A Watts | 34 | Head | Printer | Panama |
| 61 | Virginia Watts | 12 | Daughter | — | Panama |
| 62 | Norma I Watts | 10 | Daughter | — | Panama |
| 63 | Hallen L Watts | 33 | Brother | Messenger | Barbados |
| 64 | Violet Clarke | 56 | Mother | — | Barbados |
| 65 | Daniel E Brown | 55 | Head | Office Keeper | Jamaica |
| 66 | Charlotte D Brown | 45 | Wife | — | Panama |
| 67 | Winston E Brown | 15 | Son | — | Panama |
| 68 | Myrtle L Brown | 10 | Daughter | — | Panama |
| 69 | Mabel L (Ab) Brown | 13 | Daughter | — | Panama |
| 70 | Felix M Ranger | 52 | Head | Chauffeur | Jamaica |
| 71 | Edith E Ranger | 50 | Wife | — | Jamaica |
| 72 | Myrtle Kerhaldy | 11 | Niece | — | Canal Zone |
| 73 | Charles Clarke | 49 | Head | Industrial Truck Operator | Barbados |
| 74 | Annie M Clarke | 42 | Wife | — | Jamaica |
| 75 | Muriel L Clarke | 22 | Daughter | New Worker | Panama |
| 76 | Walter A Clarke | 19 | Son | Order Boy | Panama |
| 77 | Victor E Clarke | 17 | Son | Dock Laborer | Panama |
| 78 | Louie L Clarke | 15 | Daughter | — | Panama |
| 79 | Myrtle A Clarke | 13 | Daughter | — | Panama |
| 80 | Clyde T Clarke | 7 | Son | — | Panama |
| 81 | Edward A Clarke | 2 | Son | — | Panama |
| 82 | Alicia V Porde | 4 | Daughter | — | Canal Zone |
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)