MP
Mary Peterson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Peterson across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1872), then head of a 6-person household.
Age 48
b. ~1872
Female
Spouse
Born: Norway
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Peterson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | norway |
| Township / Ward | Chicago |
| Est. Birth Year | ~1872 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Theodore Peterson | Head | — | 55 | ~1865 |
| Melvin Peterson | Son | — | 21 | ~1899 |
| Paul Peterson | Son | — | 18 | ~1902 |
| Theodore Peterson | Son | — | 23 | ~1897 |
| Irving Peterson | Son | — | 17 | ~1903 |
| Mary Peterson | Spouse | — | 48 | ~1872 |
Census Appearances
1920
Cook, Illinois
Spouse, age 48
Cook, Illinois · implied b. ~1872 — 6 household members
| Surname | Peterson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | norway |
1930
Cook, Illinois
Spouse, age 58
Cook, Illinois · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 20 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Cook-County, Illinois
Spouse, age 68
Cook-County, Illinois · implied b. ~1872 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 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 Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Peterson
Spouse · 1920 · age 48 · b. ~1872 · Illinois
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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 — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu352unit:1127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth Schaefer | 4 | Son | None | Illinois |
| 2 | George Schaefer | 22 | Son | None | Illinois |
| 3 | Marguerite Schaefer | 22 | Daughter | Shipping Clerk | Illinois |
| 4 | Theodore Peterson | 55 | Head | Machinist | Norway |
| 5 | Mary Peterson THIS PERSON | 48 | Wife | None | Norway |
| 6 | Theodore J. Peterson | 23 | Son | Clerk | Illinois |
| 7 | Melvin P. Peterson | 21 | Son | Machinist | Illinois |
| 8 | Paul N. Peterson | 18 | Son | Clerk | Illinois |
| 9 | Irving M. Peterson | 17 | Son | Messenger Boy | Illinois |
| 10 | Peter M. Prest | 43 | Head | Salesman | Germany |
| 11 | Ella Prest | 29 | Wife | None | Illinois |
| 12 | Peter Jr. Prest | 4 | Son | None | Illinois |
| 13 | Janet Prest | 1 | Daughter | None | Illinois |
| 14 | Peter J. Van Bruggen | 32 | Head | Civil Engineer | Holland |
| 15 | Anna Van Bruggen | 38 | Wife | None | Illinois |
| 16 | John T. Van Bruggen | 6 | Son | None | Illinois |
| 17 | Robert E. Van Bruggen | 1 | Son | None | Illinois |
| 18 | Ellis H. Garnsey | 55 | Head | Salesman | Illinois |
| 19 | Fanny Garnsey | 54 | Wife | None | Wisconsin |
| 20 | Hazel Garnsey | 22 | Daughter | Stenographer | Illinois |
| 21 | William H. Garnsey | 49 | Head | Operator | Illinois |
| 22 | Ida Garnsey | 46 | Wife | None | Illinois |
| 23 | Harold W. Garnsey | 23 | Son | Salesman | Illinois |
| 24 | Clifford A. Garnsey | 20 | Son | Salesman | Wisconsin |
| 25 | Frank Mandalke | 31 | Head | Switchman | Illinois |
| 26 | Anna Mandalke | 31 | Wife | None | Illinois |
| 27 | Bert Mandalke | 4 | Son | None | Illinois |
| 28 | Bert Mandalke | 21 | Brother | Packer | Illinois |
| 29 | Paul Mandalke | 19 | Brother | Boilermaker Helper | Illinois |
| 30 | Harriet Mandalke | 17 | Sister | None | Illinois |
| 31 | Thomas Rankins | 61 | Head | Advanceman | Canada |
| 32 | Anna Rankins | 51 | Wife | Actress | Scotland |
| 33 | Thomas Jr. Rankins | 16 | Son | Weighmaster | Illinois |
| 34 | Laurelle Rankins | 13 | Son | None | Illinois |
| 35 | Robert Rankins | 11 | Son | None | Illinois |
| 36 | Fred E. Schultz | 48 | Head | Painter | Illinois |
| 37 | Marie Schultz | 43 | Wife | None | Norway |
| 38 | Florence Schultz | 18 | Daughter | Clerk Bookkeeper | Illinois |
| 39 | Ruth Schultz | 16 | Daughter | Billing Clerk | Illinois |
| 40 | Mildred Schultz | 10 | Daughter | None | Illinois |
| 41 | Hiram H. Boyce | 48 | Head | Toolmaker | New York |
| 42 | Henrietta Boyce | 46 | Wife | None | Ohio |
| 43 | Carmelo Palumbo | 63 | Head | Bookkeeper | Italy |
| 44 | Josephine Palumbo | 60 | Wife | None | Italy |
| 45 | Benedetta Palumbo | 27 | Daughter | Seamstress | Italy |
| 46 | Emma Palumbo | 23 | Daughter | None | Italy |
| 47 | Concetta Palumbo | 67 | Sister-in-law | None | Italy |
| 48 | Henry Schiefer | 41 | Head | Clerk | Illinois |
| 49 | Pauline Schiefer | 39 | Wife | Proprietor | Illinois |
| 50 | Irene Schiefer | 10 | Daughter | None | Illinois |
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)