AT
Ada Thompson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Madison, Montana
Our Model Tree links this Ada Thompson across the 1910 and 1920 US Censuses in Madison, Montana (XGBoost, ~Confirmed) — first a daughter (b.~1907), then head of a 11-person household.
Age 13
b. ~1907
Female
Daughter
Born: Montana
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Madison, Montana |
| Surname | Thompson |
| Given Name | Ada B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Tennessee |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | Hot Springs Township Part Of |
| Est. Birth Year | ~1907 |
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.
11 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Ada | Age | Birth yr |
|---|---|---|---|---|
| William Thompson | Son | — | 26 | ~1894 |
| Claude Thompson | Son | — | 20 | ~1900 |
| Harry Thompson | Son | — | 22 | ~1898 |
| Ada Thompson | Daughter | — | 13 | ~1907 |
| Herbert Thompson | Son | — | 12 | ~1908 |
| Harry Thompson | Head | — | 59 | ~1861 |
| Eunice Thompson | Daughter | — | 18 | ~1902 |
| Robert Thompson | Son | — | 27 | ~1893 |
| Sophia Thompson | Spouse | — | 57 | ~1863 |
| Flora Thompson | Daughter | — | 10 | ~1910 |
| Lucille Thompson | Daughter | — | 15 | ~1905 |
Census Appearances
1910
Madison, Montana
Daughter, age 4
Madison, Montana · implied b. ~1906 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ada M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Tennessee |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1920
Madison, Montana
Daughter, age 13
Madison, Montana · implied b. ~1907 — 11 household members
| Surname | Thompson |
| Given Name | Ada B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Ada Thompson across 2 US Census years (1910 and 1920) in Madison, Montana, using XGBoost record linkage.
Show:
This person
Anchor record
Ada Thompson
Daughter · 1920 · age 13 · b. ~1907 · Montana
★ You are viewing this record
Sibling
Robert Thompson
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Thompson
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eunice Thompson
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora Thompson
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Thompson
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claude Thompson
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Thompson
Sibling · 1920 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Thompson
Sibling · 1920 · age 15
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 — Madison, Montana
Open full size
1920 US Federal Census — Madison, Montana
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu972unit:1052)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alexander Mckinnon | 53 | Head | Farmer | Canada |
| 2 | Florence Mckinnon | 47 | Wife | — | Montana |
| 3 | William A Dawson | 58 | Head | Farmer | Ohio |
| 4 | Emma J Dawson | 54 | Wife | — | Indiana |
| 5 | Emma P Courtney | 19 | Boarder | Teacher | Montana |
| 6 | Patrick H Thornber | 53 | Head | Farmer | Ohio |
| 7 | Mary Thornber | 78 | Mother | — | Ireland |
| 8 | Mary V Thornber | 41 | Sister | — | Ohio |
| 9 | Nathaniel P Conway | 58 | Brother-in-law | Farm Worker | Wisconsin |
| 10 | Margaret E Conway | 47 | Sister | — | Ohio |
| 11 | Jason N Love | 24 | Head | Farmer | Missouri |
| 12 | Ina M Love | 35 | Wife | — | Missouri |
| 13 | Edward V Lally | 28 | Head | Farm Worker | Wisconsin |
| 14 | James H Shoemaker | 34 | Head | Farmer | Montana |
| 15 | Bessie H Shoemaker | 35 | Wife | — | Montana |
| 16 | Laura H Shoemaker | 5 | Daughter | — | — |
| 17 | Vesta N Shoemaker | 1 | Daughter | — | — |
| 18 | Henry N Cox | 17 | Employee | Farm Worker | Washington |
| 19 | Harry A Thompson | 59 | Head | Farmer | Wisconsin |
| 20 | Sophia E Thompson | 57 | Wife | — | Tennessee |
| 21 | Robert B Thompson | 27 | Son | Farm Worker | Montana |
| 22 | William B Thompson | 26 | Son | Farm Worker | Montana |
| 23 | Harry E Thompson | 22 | Son | Farm Worker | Montana |
| 24 | Claude E Thompson | 20 | Son | Farm Worker | Montana |
| 25 | Eunice N Thompson | 18 | Daughter | — | Montana |
| 26 | Lucille V Thompson | 15 | Daughter | — | Montana |
| 27 | Ada B Thompson THIS PERSON | 13 | Daughter | — | Montana |
| 28 | Herbert M Thompson | 12 | Son | — | Montana |
| 29 | Flora L Thompson | 10 | Daughter | — | Montana |
| 30 | Frank G Neville | 53 | Head | Farmer | Pennsylvania |
| 31 | Agnes G Neville | 33 | Wife | — | Montana |
| 32 | Hazel G Neville | 26 | Daughter | Nurse | Colorado |
| 33 | Fred A Neville | 24 | Son | Farm Worker | Colorado |
| 34 | Grace R Neville | 4 | Daughter | — | — |
| 35 | Thomas Lane | 35 | Head | Farmer | Montana |
| 36 | Alice M Lane | 45 | Wife | Cook | Montana |
| 37 | Henry A Butler | 80 | Father-in-law | — | Ohio |
| 38 | Lillie G Vincent | 28 | Employee | Farm Worker | Montana |
| 39 | Estelle Vincent | 22 | Wife | — | Montana |
| 40 | Charles B Swanson | 25 | Employee | Farm Worker | Montana |
| 41 | Edward D Neville | 19 | Employee | Farm Worker | Colorado |
| 42 | John W Isach | 23 | Employee | Farm Worker | Montana |
| 43 | James A Rambo | 34 | Employee | Farm Worker | Virginia |
| 44 | Ida F Rambo | 33 | Wife | Cook | Virginia |
| 45 | Richard Foreman | 55 | Employee | Farm Worker | England |
| 46 | Alfred M Powell | 47 | Head | Farmer | Missouri |
| 47 | Martin Warner | 52 | Head | Miner | Westphalia |
| 48 | John Lally | 33 | Head | Laborer | England |
| 49 | Minnie Amundson | 43 | Head | Housekeeper | Iowa |
| 50 | Earl Amundson | 21 | Son | Farm Worker | Montana |
Related Census Records
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)