RZ
Robert Zimmerman — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Minnesota
Our Model Tree links this Robert Zimmerman across the 1910 and 1920 US Censuses in Cook, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1905), then head of a 10-person household.
Age 15
b. ~1905
Male
Son
Born: Minnesota
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Minnesota |
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Grand Marais Village |
| Est. Birth Year | ~1905 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Vivian Zimmerman | Daughter | — | 1 | ~1919 |
| Martha Zimmerman | Daughter | — | 16 | ~1904 |
| Donald Zimmerman | Son | — | 3 | ~1917 |
| Florence Zimmerman | Daughter | — | 6 | ~1914 |
| Eva Zimmerman | Daughter | — | 13 | ~1907 |
| Sophia Zimmerman | Spouse | — | 34 | ~1886 |
| Charles Zimmerman | Son | — | 6 | ~1914 |
| Robert Zimmerman | Son | — | 15 | ~1905 |
| Steve Zimmerman | Son | — | 11 | ~1909 |
| George Zimmerman | Head | — | 39 | ~1881 |
Census Appearances
1910
Cook, Minnesota
Son, age 5
Cook, Minnesota · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | American Indian |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Cook, Minnesota
Son, age 15
Cook, Minnesota · implied b. ~1905 — 10 household members
| Surname | Zimmerman |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Robert Zimmerman across 2 US Census years (1910 and 1920) in Cook, Minnesota, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Zimmerman
Son · 1920 · age 15 · b. ~1905 · Minnesota
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Sibling
Donald Zimmerman
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Steve Zimmerman
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vivian Zimmerman
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Zimmerman
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Zimmerman
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eva Zimmerman
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Zimmerman
Sibling · 1920 · age 6
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, Minnesota
Open full size
1920 US Federal Census — Cook, Minnesota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu827unit:1086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Zimmerman | 40 | Head | Laborer | Minnesota |
| 2 | Marie Zimmerman | 26 | Wife | — | Minnesota |
| 3 | Alice A Zimmerman | 10 | Daughter | — | Minnesota |
| 4 | Evelyn Zimmerman | 6 | Daughter | — | Minnesota |
| 5 | John M Zimmerman | 4 | Son | — | Minnesota |
| 6 | George Zimmerman | 1 | Son | — | Minnesota |
| 7 | John E Murphy | 53 | Head | Retail Merchant | Michigan |
| 8 | Juanita Murphy | 41 | Wife | — | England |
| 9 | Flora M Murphy | 12 | Daughter | — | Minnesota |
| 10 | Veronica M Murphy | 10 | Daughter | — | Minnesota |
| 11 | Margaret E Murphy | 8 | Daughter | — | Minnesota |
| 12 | John E Murphy | 7 | Son | — | Minnesota |
| 13 | Cecelia M Murphy | 3 | Daughter | — | Minnesota |
| 14 | Stephen G Murphy | 0 | Son | — | Minnesota |
| 15 | Charles E Murphy | 52 | Brother | Lawyer | Wisconsin |
| 16 | Claus N Hansen | 58 | Head | Fisherman | Norway |
| 17 | Ingborg Hansen | 57 | Wife | — | Norway |
| 18 | Elsie K M Hansen | 15 | Daughter | — | Minnesota |
| 19 | George Zimmerman | 39 | Head | Fisherman | Minnesota |
| 20 | Sophia Zimmerman | 34 | Wife | — | Minnesota |
| 21 | Martha M Zimmerman | 16 | Daughter | — | Minnesota |
| 22 | Robert Zimmerman THIS PERSON | 15 | Son | — | Minnesota |
| 23 | Eva J Zimmerman | 13 | Daughter | — | Minnesota |
| 24 | Steve G Zimmerman | 11 | Son | — | Minnesota |
| 25 | Charles M Zimmerman | 6 | Son | — | Minnesota |
| 26 | Florence J Zimmerman | 6 | Daughter | — | Minnesota |
| 27 | Donald Zimmerman | 3 | Son | — | Minnesota |
| 28 | Vivian A Zimmerman | 1 | Daughter | — | Minnesota |
| 29 | R. N. Whalen | 33 | Head | Trapper | Minnesota |
| 30 | Bernice M Whalen | 21 | Wife | Cook | Minnesota |
| 31 | Elizabeth Whalen | 21 | Wife | — | Canada |
| 32 | William A Whalen | 6 | Son | — | Minnesota |
| 33 | Adeline Whalen | 3 | Daughter | — | Minnesota |
| 34 | Chris Scott | 56 | Head | Fisherman | Norway |
| 35 | Anna Scott | 49 | Wife | — | Norway |
| 36 | Gilbert J Scott | 21 | Son | Fisherman | Minnesota |
| 37 | Edward Scott | 18 | Son | Fisherman | Minnesota |
| 38 | Helen A Scott | 16 | Daughter | — | Minnesota |
| 39 | Harold B Scott | 13 | Son | — | Minnesota |
| 40 | Norman H Scott | 12 | Son | — | Minnesota |
| 41 | Sam Solheim | 58 | Head | Fisherman | Norway |
| 42 | Olida H Solheim | 52 | Wife | — | Norway |
| 43 | Isaac H Solheim | 9 | Grandson | — | Minnesota |
| 44 | Edmond H Solheim | 7 | Grandson | — | Minnesota |
| 45 | Herbert B Solheim | 3 | Grandson | — | Minnesota |
| 46 | James Zimmerman | 66 | Head | Janitor | Ohio |
| 47 | Jane Zimmerman | 54 | Wife | — | Minnesota |
| 48 | Thomas Zimmerman | 37 | Son | Trapper | Minnesota |
| 49 | Henry Zimmerman | 24 | Son | Teamster | Minnesota |
| 50 | Josephine Zimmerman | 21 | Daughter | Waitress | Minnesota |
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)