MH
Margaret Henderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ravalli-County, Montana
Our Model Tree links this Margaret Henderson across the 1930 and 1940 US Censuses in Ravalli-County, Montana (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ravalli-County, Montana |
| Surname | Henderson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Ward Township |
| 1935 Residence (County) | Ravalli |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | Ward Township |
| Est. Birth Year | ~1928 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Alice Henderson | Daughter | — | 9 | ~1931 |
| Margaret Henderson | Daughter | — | 12 | ~1928 |
| Sidney Henderson | Head | — | 54 | ~1886 |
| Richard Henderson | Son | — | 21 | ~1919 |
| Betty Henderson | Daughter | — | 8 | ~1932 |
| Edith Henderson | Daughter | — | 16 | ~1924 |
| Sigre Henderson | Spouse | — | 50 | ~1890 |
| Donald Henderson | Son | — | 5 | ~1935 |
| Morris Henderson | Son | — | 2 | ~1938 |
| Lawrence Henderson | Son | — | 14 | ~1926 |
Census Appearances
1930
Ravalli, Montana
Daughter, age 2
Ravalli, Montana · implied b. ~1928 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | Margaret G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Montana |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Ravalli-County, Montana
Daughter, age 12
Ravalli-County, Montana · implied b. ~1928 — 10 household members
| Surname | Henderson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Ward Township |
| 1935 Residence (County) | Ravalli |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Margaret Henderson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Henderson
Daughter · 1940 · age 12 · b. ~1928 · Montana
★ You are viewing this record
Sibling
Donald Henderson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Henderson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Henderson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Henderson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Henderson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Henderson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Morris Henderson
Sibling · 1940 · age 2
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
1940 US Federal Census — Ravalli-County, Montana
Open full size
1940 US Federal Census — Ravalli-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02227-00917)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marts Erline Girdler | 23 | Step Child | Farm Laborer | Nebraska |
| 2 | Walter G. Girdler | 55 | Head | Farmer | Minnesota |
| 3 | Mary Frances Girdler | 43 | Wife | — | North Dakota |
| 4 | Frederick J. Girdler | 21 | Son | Laborer Farm | Montana |
| 5 | Raymond A. Girdler | 20 | Son | Farm Laborer | Montana |
| 6 | Ellen Girdler | 17 | Daughter | — | Montana |
| 7 | Dorothy A. Girdler | 15 | Daughter | — | Montana |
| 8 | Rose Marie Girdler | 3 | Daughter | — | Montana |
| 9 | Sidney Henderson | 54 | Head | Farmer | U.S.A. |
| 10 | Sigre Henderson | 50 | Wife | — | U.S.A. |
| 11 | Richard Henderson | 21 | Son | Laborer Farm | Montana |
| 12 | Edith R. Henderson | 16 | Daughter | — | Montana |
| 13 | Lawrence Henderson | 14 | Son | — | Montana |
| 14 | Margaret Henderson THIS PERSON | 12 | Daughter | — | Montana |
| 15 | Alice Henderson | 9 | Daughter | — | Montana |
| 16 | Betty Jean Henderson | 8 | Daughter | — | Montana |
| 17 | Donald Lee Henderson | 5 | Son | — | Montana |
| 18 | Morris D. Henderson | 2 | Son | — | Montana |
| 19 | Elmer Trendece | 39 | Head | Blacksmith | Wisconsin |
| 20 | Frances Trendece | 26 | Wife | — | South Dakota |
| 21 | Jeanette Trendece | 7 | Daughter | — | Montana |
| 22 | Sidney Dark | 59 | Head | Farmer | South Dakota |
| 23 | Hattie Dark | 53 | Wife | — | South Dakota |
| 24 | Clarence Stravange | 53 | Head | Farmer | Denmark |
| 25 | Nellie Stravange | 54 | Wife | — | Denmark |
| 26 | Eric Stravange | 21 | Son | Laborer Farm | Montana |
| 27 | Peter Stravange | 18 | Son | Laborer Farm | Montana |
| 28 | Cecil Stravange | 14 | Son | — | Montana |
| 29 | John Van Brocklin | 73 | Head | Farmer | Wisconsin |
| 30 | Lucy Fifield | 47 | Head | Farmer | Minnesota |
| 31 | Norbert Fifield | 19 | Son | Farm Laborer | Montana |
| 32 | Lois Fifield | 16 | Daughter | — | Montana |
| 33 | Marie Fifield | 15 | Daughter | — | Montana |
| 34 | Charles Fifield | 12 | Son | — | Montana |
| 35 | Louis Fifield | 11 | Son | — | Montana |
| 36 | Ruth Fifield | 9 | Daughter | — | Montana |
| 37 | Mildred Fifield | 7 | Daughter | — | Montana |
| 38 | Pearl Anderson | 32 | Head | Farmer | Montana |
| 39 | Ester Anderson | 19 | Wife | — | Montana |
| 40 | Roy W. Masten | 51 | Head | Farming | Kansas |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)