ES
Emma Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Emma Smith across the 1920, 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Female
Head
Born: Indiana
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Smith |
| Given Name | Emma E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| 1935 Residence (City) | Waterloo City |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Waterloo City |
| Est. Birth Year | ~1880 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Emma | Age | Birth yr |
|---|---|---|---|---|
| Emma Smith | Head | — | 60 | ~1880 |
| Anna Schaftall | Other | — | 77 | ~1863 |
| Franklin Smith | Son | — | 29 | ~1911 |
Census Appearances
1920
Black Hawk, …
Spouse, age 39
Black Hawk, Iowa · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Germany |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Black Hawk, …
Other, age 50
Black Hawk, Iowa · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Emma E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 18 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Black-Hawk-County, Iowa
Head, age 60
Black-Hawk-County, Iowa · implied b. ~1880 — 3 household members
| Surname | Smith |
| Given Name | Emma E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| 1935 Residence (City) | Waterloo City |
| 1935 Residence (County) | Black Hawk |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Emma Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Emma Smith
Head · 1940 · age 60 · b. ~1880 · Iowa
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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 — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01140-00690)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edwin N. Byam | 34 | Head | Weigher | Iowa |
| 2 | Mary Byam | 48 | Wife | — | Iowa |
| 3 | Raymond Byam | 15 | Son | — | Iowa |
| 4 | Harry C. Barta | 26 | Son-in-law | Buyer | Iowa |
| 5 | Alice M. Barta | 19 | Daughter | — | Iowa |
| 6 | Kay Borden | 1 | Lodger | — | Iowa |
| 7 | Emma E. Smith THIS PERSON | 60 | Head | — | Indiana |
| 8 | Franklin W. Smith | 29 | Son | Surveyor | Iowa |
| 9 | Anna Schaftall | 77 | Mother | — | Indiana |
| 10 | Henry Meinders | 52 | Head | Cement Repairman | Germany |
| 11 | Reka Meinders | 43 | Wife | Laundress | Iowa |
| 12 | Irene Meinders | 22 | Daughter | Inspector | Iowa |
| 13 | Richard Meinders | 18 | Son | Attendant | Iowa |
| 14 | Arthur J. Crane | 56 | Head | Carpenter | Iowa |
| 15 | Sarah Crane | 59 | Wife | — | Iowa |
| 16 | Herbert A. Crane | 24 | Son | Carpenter Helper | Iowa |
| 17 | Lucille M. Crane | 22 | Daughter-in-law | — | Iowa |
| 18 | Lillie Hoffman | 67 | Head | — | Iowa |
| 19 | Margaretta Krug | 46 | Head | — | Germany |
| 20 | Lillian G. Krug | 25 | Daughter | Bookkeeper | Germany |
| 21 | Walter W. Krug | 18 | Son | — | Germany |
| 22 | John W. Barger | 64 | Head | Fireman | Ohio |
| 23 | Fannie E. Barger | 58 | Wife | — | Illinois |
| 24 | Ralph Munger | 26 | Head | Sausage Maker | Minnesota |
| 25 | Gretchen Munger | 21 | Wife | — | Iowa |
| 26 | William W. Kelsey | 31 | Head | Policeman | Iowa |
| 27 | May E. Kelsey | 27 | Wife | — | Iowa |
| 28 | William G. Kelsey | 7 | Son | — | Iowa |
| 29 | Luetta R. Schultz | 66 | Head | — | Iowa |
| 30 | Carl F. Schultz | 42 | Head | Divisional Credit Manager | Iowa |
| 31 | Grace M. Schultz | 40 | Wife | — | Iowa |
| 32 | Luetta Kay Schultz | 7 | Daughter | — | Iowa |
| 33 | Esther Haase | 21 | Maid | Maid | Iowa |
| 34 | James W. Hurley | 26 | Head | Salesman | Minnesota |
| 35 | Agnes M. Hurley | 28 | Wife | — | Iowa |
| 36 | Robert B. Hurley | 3 | Son | — | Iowa |
| 37 | James F. Hurley | 2 | Son | — | Iowa |
| 38 | Harold Wright | 41 | Head | Machine Operator | Iowa |
| 39 | Anna Wright | 49 | Wife | — | Iowa |
| 40 | Myrtle Sharp | 43 | Lodger | Seamstress | Iowa |
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)