MP
Mary Peters — 1920 US Census Record
Model Tree available1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Peters across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Andrew & Angelique — first a daughter (b.~1909), then head of a 5-person household.
Age 11
b. ~1909
Female
Daughter
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Peters |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Holland |
| Mother's Birthplace | Belgium |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1909 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Peters | Daughter | — | 11 | ~1909 |
| Andrew Peters | Head | — | 58 | ~1862 |
| Norbert Peters | Son | — | 15 | ~1905 |
| John Peters | Son | — | 17 | ~1903 |
| Angelique Peters | Spouse | — | 46 | ~1874 |
Census Appearances
1920
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1909 — 5 household members
| Surname | Peters |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Holland |
| Mother's Birthplace | Belgium |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 21
Cook, Illinois · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pieters |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Holland |
| Mother's Birthplace | Belgium |
| Occupation | Stenographer |
| Industry | Printing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 31
Cook-County, Illinois · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peeters |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | Cook |
| Occupation | Railroad |
| Industry | PW |
| Class of Worker | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | 45 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Peters across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Andrew Peters (~0.92 confidence) and mother Angelique Pieters (~0.92 confidence) and mother Angelique Peeters (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Andrew Peters
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Angelique Pieters
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Angelique Peeters
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Peters
Daughter · 1920 · age 11 · b. ~1909 · Illinois
★ You are viewing this record
Sibling
Norbert Peters
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Peters
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
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:1920:14thcensusofpopu339unit:0937)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frieda C. Barthel | 33 | Daughter | Machine Operator | Germany |
| 52 | William F. Barthel | 23 | Son | Machinist | Wisconsin |
| 53 | Caroline Barthel | 19 | Daughter | Off Clerk | Illinois |
| 54 | Ernest A. Barthel | 12 | Son | — | Illinois |
| 55 | Charles A. Witting | 53 | Head | Compositor | Illinois |
| 56 | Ellen L. Witting | 44 | Wife | — | Sweden |
| 57 | Elsie A. Witting | 13 | Daughter | — | Massachusetts |
| 58 | Alvira V. Witting | 12 | Son | — | Massachusetts |
| 59 | William E. Witting | 9 | Son | — | Illinois |
| 60 | Edna R. Witting | 8 | Daughter | — | Illinois |
| 61 | Astrid V. Witting | 6 | Daughter | — | Illinois |
| 62 | Earl L. Witting | 3 | Son | — | Illinois |
| 63 | Constance Witting | 1 | Daughter | — | Illinois |
| 64 | James F. Dwyer | 46 | Head | Conductor | New York |
| 65 | Jennie M. Dwyer | 42 | Wife | — | Iowa |
| 66 | James F. Jr. Dwyer | 5 | Son | — | Illinois |
| 67 | Andrew J. Peters | 58 | Head | Waiter | Holland |
| 68 | Angelique E. Peters | 46 | Wife | — | Belgium |
| 69 | John A. Peters | 17 | Son | Bookkeeper | Illinois |
| 70 | Norbert A. Peters | 15 | Son | — | Illinois |
| 71 | Mary A. Peters THIS PERSON | 11 | Daughter | — | Illinois |
| 72 | Mathilda Anderson | 59 | Head | — | Norway |
| 73 | Adah M. Anderson | 29 | Daughter | Librarian | Illinois |
| 74 | Frederick Roell | 45 | Head | Foreman | Illinois |
| 75 | Gertrude Roell | 39 | Wife | — | Illinois |
| 76 | Gerald Roell | 14 | Son | — | Illinois |
| 77 | Louisa Roell | 12 | Daughter | — | Illinois |
| 78 | Charles Rintelmann | 54 | Head | Proprietor | Illinois |
| 79 | Anna M. Rintelmann | 43 | Wife | — | Illinois |
| 80 | Gertrude Rintelmann | 20 | Daughter | Stenographer | Illinois |
| 81 | Charles A. Rintelmann | 15 | Son | — | Illinois |
| 82 | Milton Alton | 75 | Fatherinlaw | — | Pennsylvania |
| 83 | Hannah Poindexter | 34 | Head | — | Germany |
| 84 | Elsie Poindexter | 5 | Daughter | — | Illinois |
| 85 | William J. Poindexter | 3 | Son | — | Illinois |
| 86 | Carlos Dantel | 42 | Head | Manager | Illinois |
| 87 | Susan Dantel | 39 | Wife | — | Illinois |
| 88 | Hall Dantel | 9 | Son | — | Illinois |
| 89 | Virginia Dantel | 7 | Daughter | — | Illinois |
| 90 | Henry Dauback | 50 | Head | Janitor | Illinois |
| 91 | Emma C. Dauback | 38 | Wife | — | Illinois |
| 92 | Leonard J. Dauback | 14 | Son | — | Illinois |
| 93 | Dorothy E. Dauback | 12 | Daughter | — | Illinois |
| 94 | George W. Dauback | 9 | Son | — | Illinois |
| 95 | Katherine Dauback | 2 | Daughter | — | Illinois |
| 96 | Ernest Dauback | 59 | Brother | Roofer | Illinois |
| 97 | Adolph E. Fenzel | 46 | Head | Helper | Illinois |
| 98 | Anna K. Fenzel | 42 | Wife | — | Germany |
| 99 | William J. Fenzel | 14 | Son | — | Illinois |
| 100 | Roberta L. Fenzel | 6 | Daughter | — | Illinois |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)