MC
Mary Clayton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Poweshiek-County, Iowa
Our Model Tree links this Mary Clayton across the 1930 and 1940 US Censuses in Poweshiek-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Poweshiek-County, Iowa |
| Surname | Clayton |
| Given Name | Mary Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Poweshiek |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Grinnell City |
| Est. Birth Year | ~1929 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Clayton | Son | — | 12 | ~1928 |
| William Clayton | Son | — | 14 | ~1926 |
| Darlene Clayton | Daughter | — | 9 | ~1931 |
| Miles Clayton | Son | — | 18 | ~1922 |
| Paul Clayton | Son | — | 7 | ~1933 |
| Mary Clayton | Daughter | — | 11 | ~1929 |
| Mrs Clayton | Head | — | 44 | ~1896 |
| Max Clayton | Son | — | 16 | ~1924 |
Census Appearances
1930
Poweshiek, Iowa
Daughter, age
Poweshiek, Iowa · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clayton |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Poweshiek-County, Iowa
Daughter, age 11
Poweshiek-County, Iowa · implied b. ~1929 — 8 household members
| Surname | Clayton |
| Given Name | Mary Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Poweshiek |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Mary Clayton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clayton
Daughter · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
William Clayton
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darlene Clayton
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Clayton
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Clayton
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Miles Clayton
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Max Clayton
Sibling · 1940 · age 16
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 — Poweshiek-County, Iowa
Open full size
1940 US Federal Census — Poweshiek-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01200-00249)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mrs. Janetta Clayton | 44 | Head | — | Iowa |
| 42 | Miles Clayton | 18 | Son | Farm Hand | Iowa |
| 43 | Max Clayton | 16 | Son | Farm Hand | Iowa |
| 44 | William Clayton | 14 | Son | — | Iowa |
| 45 | Robert Clayton | 12 | Son | — | Iowa |
| 46 | Mary Francis Clayton THIS PERSON | 11 | Daughter | — | Iowa |
| 47 | Darlene Clayton | 9 | Daughter | — | Iowa |
| 48 | Paul Gene Clayton | 7 | Son | — | Iowa |
| 49 | J. E. Davenport | 60 | Head | Ground Work | Iowa |
| 50 | Clara V. Davenport | 40 | Wife | — | Iowa |
| 51 | Raymond Davenport | 13 | Son | — | Iowa |
| 52 | Harry Gilbert | 28 | Head | General Labor | Iowa |
| 53 | Juanita Gilbert | 26 | Wife | — | Iowa |
| 54 | Harriet Gilbert | 5 | Daughter | — | Iowa |
| 55 | Mary Gilbert | 3 | Daughter | — | Iowa |
| 56 | Alice Gilbert | 1 | Daughter | — | Iowa |
| 57 | T. J. Bateson | 74 | Head | — | Iowa |
| 58 | Dallas Pierson | 72 | Head | — | Illinois |
| 59 | Mrs. Mary Newport | 47 | Head | — | Iowa |
| 60 | Ruth Brooms | 23 | Daughter | Secretary | Iowa |
| 61 | Warren Brooms | 26 | Son-in-law | Barber | Iowa |
| 62 | Glen C. Johnson | 43 | Head | Street Foreman | Iowa |
| 63 | Esther M. Johnson | 42 | Wife | — | Kansas |
| 64 | William F. Hall | 65 | Head | Ditch-Digger | Illinois |
| 65 | Martha Hall | 48 | Wife | — | Kentucky |
| 66 | William, Jr. Hall | 16 | Son | — | Iowa |
| 67 | Norman Hall | 14 | Son | — | Iowa |
| 68 | Rex Hall | 12 | Son | — | Iowa |
| 69 | John Yeaman | 72 | Roomer | — | Iowa |
| 70 | Clarence Fowler | 38 | Head | Truck Driver | Iowa |
| 71 | Ada Fowler | 38 | Wife | — | Iowa |
| 72 | Jean Fowler | 13 | Daughter | — | Iowa |
| 73 | Donald Fowler | 11 | Son | — | Iowa |
| 74 | James Marsden | 58 | Head | Machinist | England |
| 75 | Florence Marsden | 58 | Wife | — | England |
| 76 | Florence M. Marsden | 26 | Daughter | Secretary | Iowa |
| 77 | Walter Kink | 48 | Head | Trucking | Iowa |
| 78 | Eleanor Kink | 46 | Wife | Cook | Iowa |
| 79 | Alice Kink | 21 | Daughter | Secretary | Iowa |
| 80 | Walter, Jr. Kink | 19 | Son | — | Iowa |
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)