LA
Leonard Anderson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allamakee-County, Iowa
Our Model Tree links this Leonard Anderson across the 1920, 1930 and 1940 US Censuses in Allamakee-County, Iowa (XGBoost, ~Confirmed), with identified parents Mary — first a son (b.~1891), then head of a 6-person household.
Age 49
b. ~1891
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allamakee-County, Iowa |
| Surname | Anderson |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Paint Creek Twp |
| 1935 Residence (County) | Allamakee |
| Additional Details | |
| Occupation | Laborer |
| Industry | Unskilled |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 404 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Paint Creek Twp |
| Est. Birth Year | ~1891 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Edward Anderson | Son | — | 50 | ~1890 |
| Edith Anderson | Daughter | — | 41 | ~1899 |
| Mary Anderson | Head | — | 79 | ~1861 |
| Leonard Anderson | Son | — | 49 | ~1891 |
| Lily Anderson | Daughter | — | 48 | ~1892 |
| David Anderson | Son | — | 55 | ~1885 |
Census Appearances
1920
Allamakee, Iowa
Son, age 30
Allamakee, Iowa · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | On farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Allamakee, Iowa
Other, age 40
Allamakee, Iowa · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Leonard |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Norway |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | no |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Allamakee-County, Iowa
Son, age 49
Allamakee-County, Iowa · implied b. ~1891 — 6 household members
| Surname | Anderson |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Paint Creek Twp |
| 1935 Residence (County) | Allamakee |
| Occupation | Laborer |
| Industry | Unskilled |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 404 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Leonard Anderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Anderson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Anderson
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leonard Anderson
Son · 1940 · age 49 · b. ~1891 · Iowa
★ You are viewing this record
Sibling
Edward Anderson
Sibling · 1940 · age 50
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Anderson
Sibling · 1940 · age 55
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Anderson
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lily Anderson
Sibling · 1940 · age 48
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 — Allamakee-County, Iowa
Open full size
1940 US Federal Census — Allamakee-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01136-01098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard Mcdonough | 5 | Son | — | Iowa |
| 42 | Clair Mcdonough | 31 | Brother | Farmer | Iowa |
| 43 | Mary J. Anderson | 79 | Head | — | Indiana |
| 44 | Lily Anderson | 48 | Daughter | — | Iowa |
| 45 | David G. Anderson | 55 | Son | Farmer | Iowa |
| 46 | Edward Anderson | 50 | Son | Farmer | Minnesota |
| 47 | Leonard Anderson THIS PERSON | 49 | Son | Laborer | Minnesota |
| 48 | Edith Anderson | 41 | Daughter | — | Minnesota |
| 49 | John N. Hancock | 69 | Head | Farmer | Iowa |
| 50 | Delona Hancock | 57 | Wife | — | Iowa |
| 51 | Catherine Hancock | 26 | Daughter | Housekeeper | Iowa |
| 52 | Ivan Hancock | 24 | Son | Laborer | Iowa |
| 53 | Gertrude Hancock | 15 | Daughter | — | Iowa |
| 54 | Hazel Mae Hancock | 12 | Daughter | — | Iowa |
| 55 | Milton Ronstad | 29 | Head | Farmer | Iowa |
| 56 | Ben Ronstad | 76 | Head | — | Norway |
| 57 | Elsie Ronstad | 69 | Wife | — | Iowa |
| 58 | Alfred Ronstad | 34 | Son | Laborer | Iowa |
| 59 | Lydia Ronstad | 31 | Daughter | — | Iowa |
| 60 | Bert Wilson | 57 | Head | Farmer | Iowa |
| 61 | Jesse Limb | 54 | Head | Laborer | Norway |
| 62 | Limb | 62 | Wife | — | Iowa |
| 63 | Henry T. Jensen | 61 | Head | Farmer | Denmark |
| 64 | Anne Jensen | 57 | Wife | — | Iowa |
| 65 | Hans Sorenson | 80 | Head | — | Norway |
| 66 | Herman Sorenson | 55 | Son | Carpenter | Iowa |
| 67 | Otto Sorenson | 50 | Son | Farmer | Iowa |
| 68 | Esther Sorenson | 37 | Daughter-in-law | — | Iowa |
| 69 | Howard Sorenson | 10 | Grandson | — | Iowa |
| 70 | James M. Carlson | 61 | Head | Farmer | Iowa |
| 71 | Jennie A. Carlson | 56 | Wife | — | Iowa |
| 72 | Benjamin Howard | 32 | Hired hand | Laborer | Iowa |
| 73 | Stanley Fox | 26 | Head | Farmer | South Dakota |
| 74 | Lorraine Fox | 24 | Wife | — | Iowa |
| 75 | Jesse Kelly | 71 | Head | — | Iowa |
| 76 | Milbert H. Kriegel | 61 | Head | Farmer | Iowa |
| 77 | Esther Kriegel | 58 | Wife | — | Iowa |
| 78 | Floyd Thorstenson | 26 | Hired Hand | Laborer | North Dakota |
| 79 | James L. Jr. Carlson | 57 | Head | Farmer | Iowa |
| 80 | Vesta A. Carlson | 57 | Wife | — | Kansas |
Pedigree Summary
Leonard + 4 siblings
Gen 1 · 1 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)