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Francis Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sully-County, South Dakota
Our Model Tree links this Francis Brown across the 1920, 1930 and 1940 US Censuses in Sully-County, South Dakota (XGBoost, ~Confirmed), with identified parents Anna & M — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sully-County, South Dakota |
| Surname | Brown |
| Given Name | Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Onida City |
| 1935 Residence (County) | Sully |
| Additional Details | |
| Occupation | telephone |
| Industry | operator |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 242 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Telephone |
| Township / Ward | Onida City |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Francis | Age | Birth yr |
|---|---|---|---|---|
| Francis Brown | Daughter | — | 22 | ~1918 |
| Milo Brown | Head | — | 55 | ~1885 |
| F Brown | Son | — | 24 | ~1916 |
| Anna Brown | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Sully, South …
Daughter, age 2
Sully, South Dakota · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Francis A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Sully, South …
Daughter, age 12
Sully, South Dakota · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Sully-County, South …
Daughter, age 22
Sully-County, South Dakota · implied b. ~1918 — 4 household members
| Surname | Brown |
| Given Name | Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Onida City |
| 1935 Residence (County) | Sully |
| Occupation | telephone |
| Industry | operator |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 242 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Brown (~0.92 confidence) and father M Brown (~0.92 confidence) and father Milo Brown (~0.92 confidence) and mother Anna Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Brown
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
M Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Milo Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Anna Brown
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Francis Brown
Daughter · 1940 · age 22 · b. ~1918 · South Dakota
★ You are viewing this record
Sibling
F Brown
Sibling · 1940 · age 24
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 — Sully-County, South Dakota
Open full size
1940 US Federal Census — Sully-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03868-00018)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lester C. Redinges | 42 | Head | Manager | Illinois |
| 42 | Harriet F. Redinges | 33 | Wife | — | Iowa |
| 43 | David C. Redinges | 10 | Son | — | South Dakota |
| 44 | Jane F. Redinges | 6 | Daughter | — | South Dakota |
| 45 | Milo R. Brown | 55 | Head | Social Security | Iowa |
| 46 | Anna Brown | 54 | Wife | — | Illinois |
| 47 | F. Allan Brown | 24 | Son | — | South Dakota |
| 48 | Francis Brown THIS PERSON | 22 | Daughter | Telephone | South Dakota |
| 49 | Fred Everett | 35 | Head | Barber | — |
| 50 | Irene Everett | 35 | Wife | Office Work | South Dakota |
| 51 | Preston O. Starbuck | 34 | Head | Attendant | Illinois |
| 52 | Mildred Starbuck | 29 | Wife | Clerk | South Dakota |
| 53 | Harvey Taylor | 53 | Head | Garage | South Dakota |
| 54 | Dorothy D. Taylor | 20 | Wife | — | South Dakota |
| 55 | Anthony P. Lamb | 42 | Head | Manager | Illinois |
| 56 | Vera Lamb | 34 | Wife | — | Texas |
| 57 | Dolores Lamb | 12 | Daughter | — | South Dakota |
| 58 | Joseph Lamb | 8 | Son | — | South Dakota |
| 59 | John Lamb | 6 | Son | — | South Dakota |
| 60 | Harold Murray | 43 | Head | Manager | South Dakota |
| 61 | Margaret Murray | 32 | Wife | Office | South Dakota |
| 62 | Dell Alice Murray | 22 | Sister-in-law | Office | South Dakota |
| 63 | Glenn Smith | 44 | Head | Clerical | Nebraska |
| 64 | Naomi Marie Smith | 21 | Wife | — | South Dakota |
| 65 | Milton Glenn Smith | 2 | Son | — | South Dakota |
| 66 | Wanda Marie Smith | 0 | Daughter | — | South Dakota |
| 67 | Harlo Smith | 27 | Head | Salesman | South Dakota |
| 68 | Naomi Smith | 25 | Wife | — | South Dakota |
| 69 | Carol Jean Smith | 7 | Daughter | — | South Dakota |
| 70 | Helen Louise Smith | 4 | Daughter | — | South Dakota |
| 71 | John Trythall | 63 | Head | Dentist | Wisconsin |
| 72 | Margie D. Trythall | 58 | Wife | — | Wisconsin |
| 73 | William Trythall | 25 | Son | Mechanic | South Dakota |
| 74 | Clarence Chase | 33 | Head | Manager | Iowa |
| 75 | Vera Chase | 30 | Wife | — | South Dakota |
| 76 | Lyle Chase | 2 | Son | — | South Dakota |
| 77 | Norman Chase | 1 | Son | — | South Dakota |
| 78 | Vera Jean Moulton | 14 | Sister-in-law | — | Mississippi |
| 79 | Francis Ryan | 29 | Head | Lawyer | South Dakota |
| 80 | Mary Ryan | 26 | Wife | — | Nebraska |
Pedigree Summary
Francis + 1 sibling
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)