ME
Mary Erickson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Monona, Iowa
Our Model Tree links this Mary Erickson across the 1920, 1930 and 1940 US Censuses in Monona, Iowa (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 6-person household.
Age 66
b. ~1864
Female
Head
Born: Norway
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Monona, Iowa |
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1893 |
| Age at First Marriage | 26 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Farmer |
| Township / Ward | Jordan Township |
| Est. Birth Year | ~1864 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edwin Erickson | Son | — | 37 | ~1893 |
| Hans Hansen | Other | — | 22 | ~1908 |
| Palma Erickson | Daughter | — | 23 | ~1907 |
| Mary Erickson | Head | — | 66 | ~1864 |
| Gertrude Erickson | Daughter | — | 32 | ~1898 |
| Helena Erickson | Daughter | — | 30 | ~1900 |
Census Appearances
1920
Monona, Iowa
Spouse, age 56
Monona, Iowa · implied b. ~1864 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1873 |
| 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 |
| Birthplace (normalized) | norway |
1930
Monona, Iowa
Head, age 66
Monona, Iowa · implied b. ~1864 — 6 household members
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1893 |
| Age at First Marriage | 26 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Monona-County, Iowa
Head, age 76
Monona-County, Iowa · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mrs. Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | Norway |
| 1935 Residence (City) | Jordan Twp |
| 1935 Residence (County) | Monona |
| Naturalization Status | Naturalized |
| Occupation | Housewife |
| Industry | Farm |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| 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 Mary Erickson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Erickson
Head · 1930 · age 66 · b. ~1864 · 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 — Monona, Iowa
Open full size
1930 US Federal Census — Monona, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel669:0918)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Gale E Lee | 3 | son | None | Iowa |
| 52 | Kathleen P Lee | 1 | daughter | None | Iowa |
| 53 | Eryline M Norby | 18 | boarder | Servant | Iowa |
| 54 | Park C Knutson | 21 | boarder | Laborer | Iowa |
| 55 | Mary Erickson THIS PERSON | 66 | Head | Farmer | Norway |
| 56 | Edwin M Erickson | 37 | son | Laborer | Iowa |
| 57 | Gertrude Erickson | 32 | daughter | None | Iowa |
| 58 | Helena Erickson | 30 | daughter | None | Iowa |
| 59 | Palma Erickson | 23 | daughter | None | Iowa |
| 60 | Hans Hansen | 22 | boarder | Laborer | Norway |
| 61 | Bennett Lee | 35 | Head | Farmer | Wisconsin |
| 62 | Hazel M Lee | 34 | wife | None | Iowa |
| 63 | Phyllis J Lee | 12 | daughter | None | Iowa |
| 64 | Ardith G Lee | 11 | daughter | None | Iowa |
| 65 | Maxine H Lee | 9 | daughter | None | Iowa |
| 66 | Virgil N Lee | 8 | son | None | Iowa |
| 67 | Veneece J Lee | 3 | daughter | None | Iowa |
| 68 | Donald V Lee | 2 | son | None | Iowa |
| 69 | Philip E Gross | 19 | boarder | Laborer | Iowa |
| 70 | Oscar H Bausold | 46 | Head | Farmer | Norway |
| 71 | Roseline Bausold | 41 | wife | None | Iowa |
| 72 | Opal C Bausold | 19 | daughter | None | Iowa |
| 73 | Martha L Bausold | 16 | daughter | None | Iowa |
| 74 | Lelain O Bausold | 11 | son | None | Iowa |
| 75 | Olaf W Bausold | 8 | son | None | Iowa |
| 76 | Joyce C Bausold | 5 | daughter | None | Iowa |
| 77 | Morris C Bausold | 2 | son | None | Iowa |
| 78 | Wilber Baker | 22 | boarder | Laborer | Missouri |
| 79 | Melvin T Lee | 42 | Head | Farmer | Iowa |
| 80 | Elaine M Lee | 40 | wife | None | Iowa |
| 81 | Muriel C Lee | 18 | son | None | Iowa |
| 82 | Bernard L Lee | 16 | son | None | Iowa |
| 83 | Russell W Lee | 12 | son | None | Iowa |
| 84 | Claud M Lee | 20 | son | None | Iowa |
| 85 | Henry J Norby | 40 | O | Farmer | Iowa |
| 86 | Sarah B Norby | 39 | wife | None | Iowa |
| 87 | Agnes M Norby | 13 | daughter | None | Iowa |
| 88 | Marjorie E Norby | 8 | daughter | None | Iowa |
| 89 | Gerald J Norby | 6 | son | None | Iowa |
| 90 | Arnold Peterson | 32 | O | Farmer | Iowa |
| 91 | Effie H Peterson | 32 | wife | None | Iowa |
| 92 | Gordon B Peterson | 10 | son | None | Iowa |
| 93 | Joyce A Peterson | 8 | daughter | None | Iowa |
| 94 | Glen E Peterson | 3 | son | None | Iowa |
| 95 | Chris A Sonnichsen | 36 | R | Farmer | Iowa |
| 96 | Ella Sonnichsen | 35 | wife | None | Iowa |
| 97 | Viola E Sonnichsen | 12 | son | None | Iowa |
| 98 | Leo E Sonnichsen | 6 | son | None | Iowa |
| 99 | Muriel E Sonnichsen | 4 | son | None | Iowa |
| 100 | Duaine Sonnichsen | 2 | son | None | Iowa |
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)