WF
William Fox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this William Fox across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed), with identified parents William & George — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Fox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Engineer |
| Industry | Ice Mfg |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 351 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Engineer |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1920 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Betty Fox | Daughter | — | 5 | ~1935 |
| Beverly Fox | Daughter | — | 15 | ~1925 |
| Nancy Fox | Daughter | — | 7 | ~1933 |
| Dorothy Fox | Daughter | — | 11 | ~1929 |
| George Fox | Head | — | 50 | ~1890 |
| Robert Fox | Son | — | 5 | ~1935 |
| William Fox | Son | — | 20 | ~1920 |
| Francis Fox | Son | — | 19 | ~1921 |
| Mary Fox | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Frederick, Maryland
Son, age
Frederick, Maryland · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fox |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Son, age 10
Frederick, Maryland · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fox |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Son, age 20
Frederick-County, Maryland · implied b. ~1920 — 9 household members
| Surname | Fox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Occupation | Engineer |
| Industry | Ice Mfg |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 351 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Fox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Fox (~0.92 confidence) and father George Fox (~0.92 confidence) and mother Mary Fox (~0.92 confidence) and mother Gladys Fox (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Fox
b. ~1885
Source father
● Household
· direct · ~0.92
Father
George Fox
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Fox
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Gladys Fox
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Fox
Son · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
Robert Fox
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Fox
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beverly Fox
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Fox
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Fox
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Fox
Sibling · 1940 · age 11
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 — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00123)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Irene D. Tregoning | 25 | Wife | H | Maryland |
| 42 | Doris Fay Tregoning | 6 | Daughter | — | Maryland |
| 43 | Wm Russell Tregoning | 2 | Son | — | Maryland |
| 44 | James E. Tregoning | 5 | Son | — | Maryland |
| 45 | Donald Tregoning | 4 | Son | — | Maryland |
| 46 | James E. Miles | 44 | Head | Salesman | Maryland |
| 47 | Viola Miles | 44 | Wife | H | Maryland |
| 48 | Barbara Ann Miles | 3 | Daughter | — | Maryland |
| 49 | Richard Miles | 12 | Son | — | Maryland |
| 50 | Allard Miles | 9 | Son | — | Maryland |
| 51 | Daisy E. Degrange | 62 | Head | Social Worker | Maryland |
| 52 | Nettie Burdette | 70 | Lodger | Seamstress | Maryland |
| 53 | Albert Fox | 44 | Head | H | Maryland |
| 54 | Louise Fox | 39 | Wife | H | Maryland |
| 55 | Jane Fox | 17 | Daughter | Maid | Maryland |
| 56 | Thelma Fox | 17 | Daughter | Maid | Maryland |
| 57 | Betty Fox | 13 | Daughter | — | Maryland |
| 58 | Margaret Fox | 11 | Daughter | — | Maryland |
| 59 | Rose Fox | 8 | Daughter | — | Maryland |
| 60 | Niles Fox | 20 | Son | Laborer | Maryland |
| 61 | Jesse Beckman | 52 | Head | Painter | Kentucky |
| 62 | Joyce O. Beckman | 32 | Wife | H | Maryland |
| 63 | Samuel Beegle | 43 | Lodger | Laborer | Maryland |
| 64 | Raymond E. Bopst | 52 | Head | H | Maryland |
| 65 | Charles G. Kline | 56 | Head | Cabinet Maker | Maryland |
| 66 | Mary J. Kline | 53 | Wife | H | Maryland |
| 67 | George H. Fox | 50 | Head | Laborer | Maryland |
| 68 | Mary Fox | 41 | Wife | H | Virginia |
| 69 | Beverly Fox | 15 | Daughter | New Worker | Maryland |
| 70 | Dorothy L. Fox | 11 | Daughter | — | Maryland |
| 71 | Nancy Fox | 7 | Daughter | — | Maryland |
| 72 | Betty Fox | 5 | Daughter | — | Maryland |
| 73 | William Fox THIS PERSON | 20 | Son | Engineer | Maryland |
| 74 | Francis Fox | 19 | Son | Attendant | Maryland |
| 75 | Robert Fox | 5 | Son | — | Maryland |
| 76 | William Strauss | 50 | Head | U | Ohio |
| 77 | Helen K. Strauss | 42 | Wife | H | Maryland |
| 78 | George Strauss | 10 | Son | — | Maryland |
| 79 | Edward H. Sharpe | 62 | Head | Horticulturist | England |
| 80 | Alice M. Sharpe | 60 | Wife | H | Vermont |
Pedigree Summary
William + 6 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)