FK
Francis King — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fond-Du-Lac-County, Wisconsin
Our Model Tree links this Francis King across the 1930 and 1940 US Censuses in Fond-Du-Lac-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 11-person household.
Age 31
b. ~1909
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fond-Du-Lac-County, Wisconsin |
| Surname | King |
| Given Name | Francis S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fond du Lac |
| 1935 Residence (County) | Fond du Lac |
| Additional Details | |
| Occupation | Tagger |
| Industry | Leather Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1100 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Tagger |
| Township / Ward | Fond Du Lac |
| Est. Birth Year | ~1909 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Francis | Age | Birth yr |
|---|---|---|---|---|
| Sayles King | Head | — | 60 | ~1880 |
| Bernadine King | Daughter | — | 20 | ~1920 |
| Catherine King | Daughter | — | 18 | ~1922 |
| Francis King | Son | — | 31 | ~1909 |
| Lena King | Spouse | — | 56 | ~1884 |
| Margaret O'Connor | Daughter | — | 22 | ~1918 |
| Lawrence King | Son | — | 24 | ~1916 |
| Gerald O'Connor | Son | — | ~1940 | |
| Patricia O'Connor | Daughter | — | 2 | ~1938 |
| Sylvester King | Son | — | 29 | ~1911 |
| Lawrence O'Connor | Son | — | 4 | ~1936 |
Census Appearances
1930
Fond Du …
Son, age 21
Fond Du Lac, Wisconsin · implied b. ~1909 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Tannery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Fond-Du-Lac-County, Wisconsin
Son, age 31
Fond-Du-Lac-County, Wisconsin · implied b. ~1909 — 11 household members
| Surname | King |
| Given Name | Francis S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fond du Lac |
| 1935 Residence (County) | Fond du Lac |
| Occupation | Tagger |
| Industry | Leather Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1100 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Francis King across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Francis King
Son · 1940 · age 31 · b. ~1909 · Wisconsin
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Sibling
Lawrence King
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia O'Connor
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine King
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvester King
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine King
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald O'Connor
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence O'Connor
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret O'Connor
Sibling · 1940 · age 22
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 — Fond-Du-Lac-County, Wisconsin
Open full size
1940 US Federal Census — Fond-Du-Lac-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04479-00533)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Peter Mangos | 45 | Head | Fireman | Greece |
| 42 | Olga Mangos | 43 | Wife | — | Greece |
| 43 | Christina Mangos | 18 | Daughter | — | Wisconsin |
| 44 | Helen Mangos | 17 | Daughter | — | Wisconsin |
| 45 | James Mangos | 15 | Son | — | Wisconsin |
| 46 | Nancy Mangos | 12 | Daughter | — | Wisconsin |
| 47 | Georgia Mangos | 10 | Daughter | — | Wisconsin |
| 48 | Stella Mangos | 6 | Daughter | — | Wisconsin |
| 49 | Charles Dambros | 50 | Head | Brakeman | Wisconsin |
| 50 | Addine Dambros | 39 | Wife | — | Wisconsin |
| 51 | Charles Dambros | 19 | Son | Delivery Boy | Wisconsin |
| 52 | Thomas Dambros | 18 | Son | Rep Boy | Wisconsin |
| 53 | Ilene Dambros | 16 | Daughter | — | Wisconsin |
| 54 | Henry Moznick | 32 | Head | S Fagger | Wisconsin |
| 55 | Marjorie Moznick | 29 | Wife | Cook | Wisconsin |
| 56 | Rae Marie Moznick | 5 | Daughter | — | Wisconsin |
| 57 | Barbara Moznick | 1 | Daughter | — | Wisconsin |
| 58 | James Deering | 66 | Head | Trimmer | Greece |
| 59 | Clarence Hill | 35 | Head | Truck Driver | Iowa |
| 60 | Geneve Hill | 36 | Wife | — | Minnesota |
| 61 | Mary Ann Hill | 3 | Daughter | — | Wisconsin |
| 62 | Amelia Louis | 71 | Mother-in-law | — | Minnesota |
| 63 | Guy Louis | 48 | Brother-in-law | Trucking | Minnesota |
| 64 | Avery J. Sommerfeld | 46 | Head | Finisher | Wisconsin |
| 65 | Mary A. Sommerfeld | 65 | Wife | — | Wisconsin |
| 66 | Harry J. Sommerfeld | 23 | Son | Glazing | Wisconsin |
| 67 | George Sears | 51 | Head | Tagger | Greece |
| 68 | Sophia Sears | 51 | Wife | Clerk | Wisconsin |
| 69 | Sophia Sears | 20 | Daughter | — | Wisconsin |
| 70 | Sayles B. King | 60 | Head | Salesman | Illinois |
| 71 | Lena E. King | 56 | Wife | Housekeeper | Wisconsin |
| 72 | Francis S. King THIS PERSON | 31 | Son | Tagger | Wisconsin |
| 73 | Sylvester B. King | 29 | Son | Laborer | Wisconsin |
| 74 | Lawrence King | 24 | Son | Laborer | Wisconsin |
| 75 | Bernadine King | 20 | Daughter | — | Wisconsin |
| 76 | Catherine King | 18 | Daughter | — | Wisconsin |
| 77 | Margaret D. O'Connor | 22 | Daughter | — | Wisconsin |
| 78 | Lawrence J. O'Connor | 4 | Son | — | Wisconsin |
| 79 | Patricia L. O'Connor | 2 | Daughter | — | Wisconsin |
| 80 | Gerald J. O'Connor | 0 | Son | — | Wisconsin |
Related Census Records
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)