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Mary Larson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Scott, Iowa
Our Model Tree links this Mary Larson across the 1920 and 1930 US Censuses in Scott, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 10-person household.
Age 43
b. ~1877
Female
Spouse
Born: New York
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Scott, Iowa |
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1877 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Larson | Daughter | — | ~1920 | |
| Florence Larson | Daughter | — | 2 | ~1918 |
| Ross Larson | Other | — | 20 | ~1900 |
| Laiton Larson | Son | — | 10 | ~1910 |
| George Larson | Son | — | 14 | ~1906 |
| Claudine Larson | Son | — | 23 | ~1897 |
| Eugene Larson | Son | — | 8 | ~1912 |
| Walter Larson | Son | — | 24 | ~1896 |
| Oka Larson | Son | — | 5 | ~1915 |
| Mary Larson | Spouse | — | 43 | ~1877 |
Census Appearances
1920
Scott, Iowa
Spouse, age 43
Scott, Iowa · implied b. ~1877 — 10 household members
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Scott, Iowa
Spouse, age 52
Scott, Iowa · implied b. ~1878 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 17 |
| Father's Birthplace | Germany |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Larson across 2 US Census years (1920 and 1930) in Scott, Iowa, using XGBoost record linkage.
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This person
Anchor record
Mary Larson
Spouse · 1920 · age 43 · b. ~1877 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Scott, Iowa
Open full size
1920 US Federal Census — Scott, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu512unit:0551)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Larson THIS PERSON | 43 | Wife | — | New York |
| 52 | Walter Larson | 24 | Son | — | New York |
| 53 | Ross Larson | 20 | Step-brother | Conductor | Indiana |
| 54 | Claudine Larson | 23 | Son | — | New York |
| 55 | George Larson | 14 | Son | Teamster | Iowa |
| 56 | Laiton Larson | 10 | Son | — | Iowa |
| 57 | Eugene Larson | 8 | Son | — | Iowa |
| 58 | Oka Larson | 5 | Son | — | Iowa |
| 59 | Florence Larson | 2 | Daughter | — | Iowa |
| 60 | Helen Larson | 0 | Daughter | — | Iowa |
| 61 | Henry Berdfeldt | 64 | Head | Cooper | Germany |
| 62 | Marie Berdfeldt | 63 | Wife | — | Germany |
| 63 | Marie Berdfeldt | 35 | Daughter | Bookkeeper | Iowa |
| 64 | Sophia Berdfeldt | 27 | Daughter | Stenographer | Iowa |
| 65 | Joseph Helfrich | 29 | Head | Fireman | Iowa |
| 66 | Frieda Helfrich | 27 | Wife | — | Iowa |
| 67 | Erwin Helfrich | 3 | Son | — | Iowa |
| 68 | Richard Helfrich | 2 | Son | — | Iowa |
| 69 | Ferdinand Ryan | 54 | Head | Keeper | Germany |
| 70 | Wiebka Ryan | 51 | Wife | — | Germany |
| 71 | Walter Ryan | 12 | Son | — | Iowa |
| 72 | Ernest Ryan | 28 | Son | Laborer | Iowa |
| 73 | Henry Pois | 77 | Lodger | Janitor | Holstein |
| 74 | John Dahl | 67 | Lodger | Laborer | Germany |
| 75 | Fred Schael | 54 | Lodger | Laborer | Iowa |
| 76 | Peter Krustafeldt | 58 | Lodger | Laborer | Germany |
| 77 | John W. Grignell | 51 | Lodger | Polisher | Germany |
| 78 | Antonio Frenz | 42 | Lodger | Coal Shoveler | Holland |
| 79 | Bernhard Geertz | 46 | Lodger | Dye Setter | Holland |
| 80 | Fred Rasmuson | 48 | Lodger | Dye Setter | Illinois |
| 81 | Peter Thiedemann | 64 | Lodger | Polisher | Germany |
| 82 | Fred Ahrenholz | 36 | Head | Carpenter | Germany |
| 83 | Bertha Ahrenholz | 39 | Wife | — | Germany |
| 84 | Dolores Ahrenholz | 9 | Daughter | — | Iowa |
| 85 | Charles K. Walden | 30 | Head | Iron Worker | Iowa |
| 86 | Hilda Walden | 30 | Wife | Teacher | Iowa |
| 87 | Lloyd Watson | 23 | Lodger | Storekeeper | Rhode Island |
| 88 | Walter Grant | 36 | Lodger | Carpenter | Kansas |
| 89 | Pearl Grant | 33 | Lodger | — | Kansas |
| 90 | George H. Dicky | 46 | Head | Trucker | Illinois |
| 91 | Blanche Dicky | 37 | Wife | — | Iowa |
| 92 | Hazel Dicky | 17 | Daughter | Packer | Iowa |
| 93 | Evelyn Dicky | 12 | Daughter | — | Iowa |
| 94 | Fred Dicky | 10 | Son | — | Iowa |
| 95 | Clement Dicky | 8 | Son | — | Iowa |
| 96 | Earl Dicky | 6 | Son | — | Iowa |
| 97 | Helen Dicky | 2 | Daughter | — | Iowa |
| 98 | Edgar H. Stanley | 31 | Head | Miller | Kansas |
| 99 | Emma Stanley | 29 | Wife | — | Germany |
| 100 | Lillian Stanley | 4 | Daughter | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)