MS
Martha Simmons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Johnson-County, Missouri
Our Model Tree links this Martha Simmons across the 1930 and 1940 US Censuses in Johnson-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Johnson-County, Missouri |
| Surname | Simmons |
| Given Name | Martha A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Columbus Township |
| 1935 Residence (County) | Johnson |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Columbus Township |
| Est. Birth Year | ~1930 |
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 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| John Simmons | Head | — | 46 | ~1894 |
| Chester Simmons | Son | — | 19 | ~1921 |
| Martha Simmons | Daughter | — | 10 | ~1930 |
| Allen Simmons | Son | — | 17 | ~1923 |
| Mattie Simmons | Spouse | — | 44 | ~1896 |
| Glenn Simmons | Son | — | 15 | ~1925 |
| Jessie Simmons | Son | — | 13 | ~1927 |
Census Appearances
1930
Johnson, Missouri
Daughter, age 1
Johnson, Missouri · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Martha A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Johnson-County, Missouri
Daughter, age 10
Johnson-County, Missouri · implied b. ~1930 — 7 household members
| Surname | Simmons |
| Given Name | Martha A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Columbus Township |
| 1935 Residence (County) | Johnson |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same House |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Martha Simmons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Simmons
Daughter · 1940 · age 10 · b. ~1930 · Missouri
★ You are viewing this record
Sibling
Jessie Simmons
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chester Simmons
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Simmons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glenn Simmons
Sibling · 1940 · 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
1940 US Federal Census — Johnson-County, Missouri
Open full size
1940 US Federal Census — Johnson-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02120-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charlie Colster | 38 | Head | Farmer | Missouri |
| 42 | Fannie Colster | 30 | Wife | — | Missouri |
| 43 | George O'Conor | 46 | Head | Farmer | Missouri |
| 44 | Eula O'Conor | 44 | Wife | — | Missouri |
| 45 | John Warren O'Conor | 21 | Son | Produce Buyer | Missouri |
| 46 | Genelle O'Conor | 15 | Daughter | — | Missouri |
| 47 | George F. Smith | 27 | Head | Farmer | Missouri |
| 48 | Amelia A. Smith | 24 | Wife | — | Missouri |
| 49 | Clarence Branstetter | 26 | Head | Farmer | Missouri |
| 50 | Marjorie Branstetter | 22 | Wife | — | Missouri |
| 51 | Clarence G. Branstetter | 3 | Son | — | Missouri |
| 52 | Mrs. Edd Henry | 58 | Head | — | Missouri |
| 53 | Elza Parsons | 47 | Head | Farmer | Missouri |
| 54 | Mary Parsons | 42 | Wife | — | Oklahoma |
| 55 | Merlin Simmerman | 19 | Head | Farmer | Missouri |
| 56 | Alva Dean Simmerman | 26 | Wife | — | Missouri |
| 57 | Peggy Joan Simmerman | 1 | Daughter | — | Missouri |
| 58 | Orville Styany | 53 | Head | Farmer | Missouri |
| 59 | Pauline Styany | 44 | Wife | — | Kansas |
| 60 | Samuel Branstetter | 63 | Head | Farmer | Missouri |
| 61 | Mabel Branstetter | 35 | Daughter | School Teacher | Missouri |
| 62 | Irene Branstetter | 30 | Daughter | — | Missouri |
| 63 | Adais Branstetter | 20 | Daughter | — | Missouri |
| 64 | Charles H. Kessler | 59 | Head | Farmer | Missouri |
| 65 | Myrtie R. Kessler | 57 | Wife | — | Missouri |
| 66 | Robert Q. Beard | 50 | Head | Farmer | Kansas |
| 67 | Edward Crew | 45 | Head | Farmer | Missouri |
| 68 | Carrie Crew | 51 | Wife | — | Missouri |
| 69 | Pleasant Rice | 74 | Head | Farmer | Missouri |
| 70 | Lillie M. Rice | 64 | Wife | — | Kansas |
| 71 | Allen C. Fitch | 71 | Head | Farmer | Missouri |
| 72 | Adah Fitch | 66 | Wife | — | Missouri |
| 73 | Dale Fitch | 21 | Son | Farmer | Missouri |
| 74 | John B. Simmons | 46 | Head | Farmer | Missouri |
| 75 | Mattie E. Simmons | 44 | Wife | — | Missouri |
| 76 | Chester A. Simmons | 19 | Son | — | Missouri |
| 77 | Allen D. Simmons | 17 | Son | — | Missouri |
| 78 | Glenn P. Simmons | 15 | Son | — | Missouri |
| 79 | Jessie F. Simmons | 13 | Son | — | Missouri |
| 80 | Martha A. Simmons THIS PERSON | 10 | Daughter | — | Missouri |
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)