HB
Harry Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Minnehaha-County, South Dakota
Our Model Tree links this Harry Brown across the 1920, 1930 and 1940 US Censuses in Minnehaha-County, South Dakota (XGBoost, ~Confirmed), with identified parents Martin & Mollie — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Minnehaha-County, South Dakota |
| Surname | Brown |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux Falls City |
| 1935 Residence (County) | Minnehaha |
| Additional Details | |
| Occupation | Traveling Salesman |
| Class of Worker | PW |
| Income (1939) | 99 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Traveling Salesman |
| Township / Ward | Sioux Falls City |
| Est. Birth Year | ~1912 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Martin Brown | Head | — | 54 | ~1886 |
| Marlin Brown | Son | — | 21 | ~1919 |
| Harry Brown | Son | — | 28 | ~1912 |
| Mollie Brown | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Minnehaha, South …
Son, age 8
Minnehaha, South Dakota · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Harris E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Minnehaha, South …
Son, age 18
Minnehaha, South Dakota · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Harry E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Minnehaha-County, South …
Son, age 28
Minnehaha-County, South Dakota · implied b. ~1912 — 4 household members
| Surname | Brown |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Sioux Falls City |
| 1935 Residence (County) | Minnehaha |
| Occupation | Traveling Salesman |
| Class of Worker | PW |
| Income (1939) | 99 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Harry Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Brown (~0.92 confidence) and mother Mollie Brown (~0.92 confidence) and mother Mollie Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Brown
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Mollie Brown
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Mollie Brown
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Brown
Son · 1940 · age 28 · b. ~1912 · South Dakota
★ You are viewing this record
Sibling
Marlin Brown
Sibling · 1940 · age 21
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 — Minnehaha-County, South Dakota
Open full size
1940 US Federal Census — Minnehaha-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03863-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lois Chapman | 55 | Wife | — | Nebraska |
| 2 | Blaine Hood | 32 | Head | Traveling Salesman | Pennsylvania |
| 3 | Kay Hood | 25 | Wife | — | Kentucky |
| 4 | Martin L. Brown | 54 | Head | Building Manager | Iowa |
| 5 | Mollie Brown | 50 | Wife | — | Iowa |
| 6 | Harry Brown THIS PERSON | 28 | Son | Traveling Salesman | Iowa |
| 7 | Marlin Brown | 21 | Son | — | South Dakota |
| 8 | Knudt H. Lindseth | 51 | Head | Auditor | Minnesota |
| 9 | Anne Lindseth | 52 | Wife | — | Norway |
| 10 | Harold K. Lindseth | 26 | Son | — | Montana |
| 11 | Helen L. Lindseth | 21 | Daughter | Stenographer | Minnesota |
| 12 | Mary Jane Marshall | 19 | Lodger | Laboratory Girl | South Dakota |
| 13 | Alma Nelson | 32 | Lodger | Stenographer | South Dakota |
| 14 | Howard Kendall | 40 | Head | Conductor | Georgia |
| 15 | Cora Kendall | 37 | Wife | — | Minnesota |
| 16 | Emmett Kendall | 16 | Son | — | Minnesota |
| 17 | John H. Kendall | 10 | Son | — | Minnesota |
| 18 | Elsie Ening | 48 | Head | Assistant To Sec. | Minnesota |
| 19 | John Robert Ening | 21 | Son | Clothing Salesman | South Dakota |
| 20 | William A. Ening | 18 | Son | Messenger | South Dakota |
| 21 | Christina Smith | 24 | Head | Diet Kitchen | Holland |
| 22 | Helen Smith | 26 | Sister | Ironer | Holland |
| 23 | Fred H. Pratt | 53 | Head | Manager | Nebraska |
| 24 | Gladys Pratt | 49 | Wife | Helper | Nebraska |
| 25 | Harlan Pratt | 21 | Son | Laborer | South Dakota |
| 26 | Lucy E. Bliss | 68 | Head | — | Wisconsin |
| 27 | Rowena Bliss | 39 | Daughter | Technician | South Dakota |
| 28 | Alfred E. Edward | 68 | Head | Dealer | Iowa |
| 29 | Matilda Edward | 52 | Wife | Alteration Room | Missouri |
| 30 | Elizabeth Edward | 20 | Daughter | — | South Dakota |
| 31 | Carson Dorothy Edward | 32 | Daughter | Clerk | South Dakota |
| 32 | Mark W. Shelow | 50 | Head | Laborer | South Dakota |
| 33 | Flora A. Shelow | 48 | Wife | — | Illinois |
| 34 | Lyle D. Shelow | 23 | Son | Window Dresser | South Dakota |
| 35 | Elizabeth Welbourne | 81 | Lodger | — | England |
| 36 | Frank P. Leach | 78 | Head | Office Manager | New York |
| 37 | Harriet Leach | 76 | Wife | — | New York |
| 38 | Roger N. Shade | 37 | Head | Asst. Junior Playgr. | Illinois |
| 39 | Leta L. Shade | 37 | Wife | — | South Dakota |
| 40 | Roger Shade | 14 | Son | — | South Dakota |
Pedigree Summary
Harry + 1 sibling
Gen 1 · 3 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)