MS
Mary Swanson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Shelby, Illinois
Our Model Tree links this Mary Swanson across the 1920, 1930 and 1940 US Censuses in Shelby, Illinois (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 5-person household.
Age 70
b. ~1860
Female
Head
Born: Norway
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Shelby, Illinois |
| Surname | Swanson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Big Spring Township |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Carl Swanson | Son | — | 32 | ~1898 |
| Mary Swanson | Head | — | 70 | ~1860 |
| Marilyn Carruthers | Other | — | 2 | ~1928 |
| Lela Carruthers | Daughter | — | 28 | ~1902 |
| Leo Carruthers | Other | — | 28 | ~1902 |
Census Appearances
1920
Shelby, Illinois
Spouse, age 60
Shelby, Illinois · implied b. ~1860 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swenson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1870 |
| 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
Shelby, Illinois
Head, age 70
Shelby, Illinois · implied b. ~1860 — 5 household members
| Surname | Swanson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Widowed |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Shelby-County, Illinois
Other, age 81
Shelby-County, Illinois · implied b. ~1859 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 81 |
| Marital Status | Widowed |
| Birthplace | Norway |
| 1935 Residence (City) | Big Spring |
| 1935 Residence (County) | Shelby |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| 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 Swanson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Swanson
Head · 1930 · age 70 · b. ~1860 · Illinois
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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 — Shelby, Illinois
Open full size
1930 US Federal Census — Shelby, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel561:0563)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Abigail Hill | 71 | Wife | — | Illinois |
| 52 | Velma Johnson | 22 | Granddaughter | School Teacher | Illinois |
| 53 | Boda Johnson | 20 | Granddaughter | Laborer | Illinois |
| 54 | Lee Johnson | 14 | Grandson | Laborer | Illinois |
| 55 | Mary Swanson THIS PERSON | 70 | Head | — | Norway |
| 56 | Carl Swanson | 32 | Son | Farmer | Illinois |
| 57 | Leo Carruthers | 28 | Son in law | Railway Postal Clerk | Illinois |
| 58 | Lela Carruthers | 28 | Daughter | — | Illinois |
| 59 | Marilyn Carruthers | 2 | Granddaughter | — | Illinois |
| 60 | James E. Mcclory | 44 | Head | Farmer | Illinois |
| 61 | Elizabeth Mcclory | 73 | Mother | — | Illinois |
| 62 | Mildred Mcclory | 14 | Daughter | — | Illinois |
| 63 | Jerome Smith | 30 | Head | Farm Laborer | Illinois |
| 64 | Henry Boldt | 60 | Head | Farm Laborer | Illinois |
| 65 | Vernie Boldt | 23 | Son | Farm Laborer | Illinois |
| 66 | August Frede | 58 | Head | Merchant | Illinois |
| 67 | Anna M. Frede | 56 | Wife | — | Illinois |
| 68 | Fred A. Frede | 21 | Son | Clerk | Illinois |
| 69 | Morris A. Frede | 18 | Son | — | Illinois |
| 70 | Clayton Dole | 31 | Head | Merchant | Illinois |
| 71 | Pauline Dole | 26 | Wife | — | Illinois |
| 72 | Robert S. Dole | 4 | Son | — | Illinois |
| 73 | Shirley Ann Dole | 2 | Daughter | — | Illinois |
| 74 | James Barrett | 61 | Head | Farmer | Illinois |
| 75 | Lydia Barrett | 50 | Wife | — | Illinois |
| 76 | Earl Barrett | 27 | Son | Merchant | Illinois |
| 77 | Frank Barrett | 25 | Son | Farm Laborer | Illinois |
| 78 | Blanche Barrett | 19 | Daughter | — | Illinois |
| 79 | William Monson | 66 | Head | — | Sweden |
| 80 | Bridget M. Smith | 68 | Head | — | Illinois |
| 81 | Helena Sheehan | 60 | Head | — | Illinois |
| 82 | Alois Sheehan | 30 | Son | Farm Laborer | Illinois |
| 83 | Patrick Sheehan | 23 | Son | Farm Laborer | Illinois |
| 84 | Ben Doll | 62 | Head | Farmer | Illinois |
| 85 | Lulu C. Doll | 60 | Wife | Postmistress | Ohio |
| 86 | Dorothy Doll | 20 | Daughter | Clerk | Illinois |
| 87 | Bernard Wilson | 69 | Head | Farmer | Ohio |
| 88 | Margaret Wilson | 69 | Wife | — | Illinois |
| 89 | Beatrice Wilson | 24 | Daughter | — | Illinois |
| 90 | Clennie C. Clemmons | 30 | Head | Farm Laborer | Indiana |
| 91 | Maud M. Clemmons | 23 | Wife | — | Illinois |
| 92 | John C. Finn | 57 | Head | Hay Shipper | Illinois |
| 93 | Mamie Finn | 51 | Wife | — | Missouri |
| 94 | Margaret Finn | 22 | Daughter | — | Illinois |
| 95 | Frank Randall | 62 | Head | Farm Laborer | Illinois |
| 96 | Woodrow Young | 16 | Nephew | — | Illinois |
| 97 | Theodore Cuffenorde | 64 | Head | Carpenter | Illinois |
| 98 | Leona Cuffenorde | 22 | Daughter | — | Illinois |
| 99 | Joseph Cuffenorde | 19 | Son | Farm Laborer | Illinois |
| 100 | George Cuffenorde | 17 | Son | Farm Laborer | Illinois |
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)