MT
Margaret Thomas — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Monroe, Iowa
Our Model Tree links this Margaret Thomas across the 1900, 1910 and 1920 US Censuses in Monroe, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1870), then head of a 7-person household.
Age 50
b. ~1870
Female
Spouse
Born: Wales
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Monroe, Iowa |
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1888 |
| Naturalization Status | Alien |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Township / Ward | Hiteman Town |
| Est. Birth Year | ~1870 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thomas | Daughter | — | 11 | ~1909 |
| Evan Thomas | Head | — | 50 | ~1870 |
| Emlyn Thomas | Son | — | 22 | ~1898 |
| John Thomas | Son | — | 19 | ~1901 |
| Otto Thomas | Son | — | 24 | ~1896 |
| Garwin Thomas | Son | — | 14 | ~1906 |
| Margaret Thomas | Spouse | — | 50 | ~1870 |
Census Appearances
1900
Monroe, Iowa
Spouse, age 29
Monroe, Iowa · implied b. ~1871 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Wales |
| Birth Month | Feb |
| Birth Year | 1871 |
| Year of Immigration | 1894 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1910
Monroe, Iowa
Spouse, age 40
Monroe, Iowa · implied b. ~1870 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Wales |
| Years Married | 16 |
| Children Born | 5 |
| Children Living | 5 |
| Year of Immigration | 1893 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1920
Monroe, Iowa
Spouse, age 50
Monroe, Iowa · implied b. ~1870 — 7 household members
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1888 |
| Naturalization Status | Alien |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Margaret Thomas across 3 US Census years (1900, 1910 and 1920) in Monroe, Iowa, using XGBoost record linkage.
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This person
Anchor record
Margaret Thomas
Spouse · 1920 · age 50 · b. ~1870 · 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 — Monroe, Iowa
Open full size
1920 US Federal Census — Monroe, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu503unit:0817)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Barker | 14 | Daughter | — | Iowa |
| 2 | Mary Barker | 12 | Daughter | — | Iowa |
| 3 | Ellis Barker | 3 | Daughter | — | Iowa |
| 4 | Roy Barker | 24 | Brother | Coal Miner | Iowa |
| 5 | Alexander Marshall | 31 | Head | Coal Miner | Iowa |
| 6 | Mary Marshall | 32 | Wife | — | Iowa |
| 7 | Mary Jane Marshall | 11 | Daughter | — | Iowa |
| 8 | Martha J. Marshall | 7 | Daughter | — | Iowa |
| 9 | Joyce F. Marshall | 2 | Daughter | — | Iowa |
| 10 | John Hand | 54 | Head | Coal Miner | Scotland |
| 11 | Jennie Hand | 52 | Wife | — | Pennsylvania |
| 12 | Scott Martin | 28 | Niece | Clerk | Scotland |
| 13 | Stella Martin | 28 | Wife | — | Iowa |
| 14 | Evan C. Thomas | 50 | Head | Asst. Pit Boss | Wales |
| 15 | Margaret Thomas THIS PERSON | 50 | Wife | — | Wales |
| 16 | Otto Thomas | 24 | Son | Driver | Iowa |
| 17 | Emlyn Thomas | 22 | Son | Driver | Iowa |
| 18 | John Thomas | 19 | Son | Section Hand | Iowa |
| 19 | Garwin Thomas | 14 | Son | — | Iowa |
| 20 | Margaret Thomas | 11 | Daughter | — | Iowa |
| 21 | Otto Gibb | 32 | Head | Coal Miner | Iowa |
| 22 | Eva Grace Gibb | 30 | Wife | — | Iowa |
| 23 | Paul Brice Gibb | 10 | Son | — | Iowa |
| 24 | Bessie Gibb | 8 | Daughter | — | Iowa |
| 25 | Esther Gibb | 6 | Daughter | — | Iowa |
| 26 | Robert Gibb | 3 | Son | — | Iowa |
| 27 | Isabel Gibb | 1 | Daughter | — | Iowa |
| 28 | Esther Briggs | 55 | Mother-in-law | — | Ireland |
| 29 | M. A. Clifton | 77 | Head | Shoe Maker | Sweden |
| 30 | Annie Clifton | 73 | Wife | — | Sweden |
| 31 | Ryan Asa Asa | 59 | Head | Laborer | Iowa |
| 32 | Nellie Asa | 45 | Wife | — | Iowa |
| 33 | Thomas Asa | 21 | Son | Laborer | Iowa |
| 34 | Emma Asa | 10 | Daughter | — | Iowa |
| 35 | Glen Asa | 5 | Son | — | Iowa |
| 36 | H. T. Zimmerman | 48 | Head | Coal Miner | Missouri |
| 37 | Dilla Zimmerman | 44 | Wife | — | Missouri |
| 38 | Linnie Zimmerman | 18 | Son | Coal Miner | Missouri |
| 39 | Herman Zimmerman | 16 | Son | Trapper | Missouri |
| 40 | Jeanette Zimmerman | 7 | Daughter | — | Missouri |
| 41 | Beulah Zimmerman | 4 | Daughter | — | Missouri |
| 42 | Mary Zimmerman | 1 | Daughter | — | Missouri |
| 43 | John John | 57 | Head | Coal Miner | U.S. |
| 44 | Sarah John | 52 | Wife | — | Ohio |
| 45 | John John | 22 | Son | Coal Miner | New York |
| 46 | William John | 20 | Son | Coal Miner | England |
| 47 | Thomas John | 18 | Son | — | Iowa |
| 48 | Mary John | 15 | Daughter | — | Iowa |
| 49 | George John | 11 | Son | — | Iowa |
| 50 | David John | 9 | Son | — | Scotland |
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)