GJ
Gertrude Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Winnebago, Iowa
Our Model Tree links this Gertrude Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Winnebago, Iowa (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 2-person household.
Age 70
b. ~1860
Female
Head
Born: Norway
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Winnebago, Iowa |
| Surname | Johnson |
| Given Name | Gertrude |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1866 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Lake Mills Town |
| Est. Birth Year | ~1860 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Johnson | Head | — | 70 | ~1860 |
| Bernard Johnson | Son | — | 33 | ~1897 |
Census Appearances
1910
Nelson, North …
Spouse, age 50
Nelson, North Dakota · implied b. ~1860 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Gertrud |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Norway |
| Years Married | 14 |
| Children Born | 8 |
| Children Living | 6 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1920
Winnebago, Iowa
Spouse, age 59
Winnebago, Iowa · implied b. ~1861 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Gertrud |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1867 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1880 |
| Birthplace (normalized) | norway |
1930
Winnebago, Iowa
Head, age 70
Winnebago, Iowa · implied b. ~1860 — 2 household members
| Surname | Johnson |
| Given Name | Gertrude |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1866 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Worth-County, Iowa
Other, age 79
Worth-County, Iowa · implied b. ~1861 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Gertrud |
| Relationship to Head | mother |
| Sex | F |
| Color / Race | White |
| Age | 79 |
| Marital Status | Widowed |
| Birthplace | Norway |
| 1935 Residence (City) | Brookfield Twp |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Gertrude Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Gertrude Johnson
Head · 1930 · age 70 · b. ~1860 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Winnebago, Iowa
Open full size
1930 US Federal Census — Winnebago, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel688:0333)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Trina Olson | 67 | Head | — | Norway |
| 52 | Mildred Olson | 10 | Daughter | — | Iowa |
| 53 | Cass Beckjorden | 49 | Boarder | Trucking | Wisconsin |
| 54 | Ole Tollefson | 64 | Head | Farmer | Minnesota |
| 55 | Julia Tollefson | 53 | Wife | — | Norway |
| 56 | Julia Engebretson | 38 | Head | Farming | Iowa |
| 57 | Bertha Engebretson | 28 | Wife-H | — | Iowa |
| 58 | Ardis Engebretson | 5 | Daughter | — | Iowa |
| 59 | Marvin Engebretson | 3 | Son | — | Iowa |
| 60 | Cyrus Engebretson | 1 | Son | — | Iowa |
| 61 | John Gunvordahl | 67 | Roomer | — | Norway |
| 62 | John Bergland | 57 | Head | Salesman | Norway |
| 63 | Sophia Bergland | 49 | Wife | — | Norway |
| 64 | Harvey Bergland | 15 | Son | — | North Dakota |
| 65 | Gladys Bergland | 12 | Daughter | — | North Dakota |
| 66 | Thomas Johnson | 44 | Head | Drayman | Iowa |
| 67 | Cora Johnson | 47 | Wife | — | Iowa |
| 68 | Carol Johnson | 18 | Daughter | Hired Girl | Iowa |
| 69 | Lillian Johnson | 14 | Daughter | — | Iowa |
| 70 | Mildred Johnson | 12 | Daughter | — | Iowa |
| 71 | Lois Johnson | 9 | Son | — | Iowa |
| 72 | Ada May Nash | 58 | Head | Minister | Missouri |
| 73 | Minnie Perkins | 56 | Roomer | Merchant | Minnesota |
| 74 | Nels Dr. Olson | 41 | Head | Doctor | Norway |
| 75 | Marie Olson | 41 | Wife | — | Iowa |
| 76 | Mona Olson | 13 | Son | — | Iowa |
| 77 | Olaf Olson | 11 | Son | — | Iowa |
| 78 | Cairner Olson | 8 | Son | — | Michigan |
| 79 | Navin Olson | 6 | Son | — | Iowa |
| 80 | Virgil Olson | 4 | Son | — | Iowa |
| 81 | Winfield Olson | 2 | Son | — | Iowa |
| 82 | Katherine Olson | 0 | Daughter | — | Iowa |
| 83 | Ellen Myher | 59 | Head | — | Illinois |
| 84 | John Gerving | 59 | Head | Proprietor | Iowa |
| 85 | Helena Gerving | 53 | Wife | Doctor | Iowa |
| 86 | Irene Buland | 23 | Roomer | Clerk | Illinois |
| 87 | Julia Michelson | 42 | Roomer | Asst. Postmistress | Iowa |
| 88 | Agnes Michelson | 26 | Roomer | Teacher | Iowa |
| 89 | Gertrude Johnson THIS PERSON | 70 | Head | — | Norway |
| 90 | Bernard Johnson | 33 | Son | Trucking | Iowa |
| 91 | Alfred Moe | 33 | Head | Trucking | Iowa |
| 92 | Thelma Moe | 33 | Wife | — | Iowa |
| 93 | Harlan Moe | 9 | Son | — | Iowa |
| 94 | Arnold Moe | 8 | Son | — | Iowa |
| 95 | Mary S. Hull | 70 | Head | Saleslady | Wisconsin |
| 96 | Walter Ledyard | 39 | Roomer | Laborer | Iowa |
| 97 | Iver Johnson | 45 | Roomer | Buyer | Iowa |
| 98 | Lucien Beck | 63 | Roomer | Carpenter | Iowa |
| 99 | Lewis Storby | 50 | Roomer | Asst. Manager | Iowa |
| 100 | Sam Stewart | 42 | Head | Painter | Minnesota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)