MH
Mary Henderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Ohio
Our Model Tree links this Mary Henderson across the 1930 and 1940 US Censuses in Warren-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Ohio |
| Surname | Henderson |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Clinton |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Yes 4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Waynesville Village |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nancy Henderson | Daughter | — | 2 | ~1938 |
| Janice Henderson | Daughter | — | 3 | ~1937 |
| Phyllis Henderson | Daughter | — | 8 | ~1932 |
| Myrna Henderson | Daughter | — | 5 | ~1935 |
| Mary Henderson | Daughter | — | 11 | ~1929 |
| Charles Henderson | Head | — | 33 | ~1907 |
| Jessie Henderson | Son | — | 4 | ~1936 |
| Jerry Henderson | Son | — | 4 | ~1936 |
| Charles Henderson | Son | — | 9 | ~1931 |
| Ethel Henderson | Spouse | — | 30 | ~1910 |
Census Appearances
1930
Warren, Ohio
Daughter, age 1
Warren, Ohio · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Warren-County, Ohio
Daughter, age 11
Warren-County, Ohio · implied b. ~1929 — 10 household members
| Surname | Henderson |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Clinton |
| 1935 Residence (County) | Clinton |
| Industry | 0 |
| Highest Grade | Yes 4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Henderson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Henderson
Daughter · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Nancy Henderson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jessie Henderson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Henderson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Henderson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Henderson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrna Henderson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Henderson
Sibling · 1940 · age 4
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 — Warren-County, Ohio
Open full size
1940 US Federal Census — Warren-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03164-00811)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emily Jacobs | 53 | Head | Housekeeper | Ohio |
| 2 | Robert M. Groeting | 16 | Ward | — | Ohio |
| 3 | Horace P. Keys | 87 | Ward | — | Ohio |
| 4 | Orville J. Grey | 44 | Head | Proprietor | Ohio |
| 5 | Naomi I. Grey | 40 | Wife | — | Ohio |
| 6 | Barbara L. Grey | 21 | Daughter | — | Ohio |
| 7 | Thelma M. Lewis | 39 | Head | Proprietor | Ohio |
| 8 | Willa F. Lewis | 17 | Daughter | — | Ohio |
| 9 | Erwin H. Lewis | 14 | Son | — | Ohio |
| 10 | Earl C. Coyle | 37 | Head | Proprietor | Ohio |
| 11 | Winifred Coyle | 36 | Wife | Saleslady | Ohio |
| 12 | Gerald E. Coyle | 17 | Son | — | Ohio |
| 13 | Frank Repustock | 55 | Lodger | Meat Dresser | Ohio |
| 14 | Hallie Reed | 22 | Servant | House Work | Kentucky |
| 15 | Warner Morris | 83 | Head | — | Ohio |
| 16 | Laura B. Morris | 79 | Wife | — | Ohio |
| 17 | Nolan O'Conner | 64 | Head | Laborer | Ohio |
| 18 | Jennie R. O'Conner | 54 | Wife | — | Ohio |
| 19 | Melissa A. Nicholson | 87 | Mother in law | — | Ohio |
| 20 | W. Albert Brannock | 29 | Head | Laborer | Kentucky |
| 21 | Pauline Brannock | 27 | Wife | — | Ohio |
| 22 | Alberta L. Brannock | 6 | Daughter | — | Ohio |
| 23 | Charles F. Henderson | 33 | Head | Laborer | Ohio |
| 24 | Ethel M. Henderson | 30 | Wife | — | Ohio |
| 25 | Mary M. Henderson THIS PERSON | 11 | Daughter | — | Ohio |
| 26 | Charles A. Henderson | 9 | Son | — | Ohio |
| 27 | Phyllis A. Henderson | 8 | Daughter | — | Ohio |
| 28 | Myrna E. Henderson | 5 | Daughter | — | Ohio |
| 29 | Jerry Henderson | 4 | Son | — | Ohio |
| 30 | Jessie Henderson | 4 | Son | — | Ohio |
| 31 | Janice Henderson | 3 | Daughter | — | Ohio |
| 32 | Nancy L. Henderson | 2 | Daughter | — | Ohio |
| 33 | Mary F. Scott | 52 | Head | Housework | Ohio |
| 34 | J. Vernon Scott | 24 | Son | Laborer | Ohio |
| 35 | Mary M. Scott | 20 | Daughter in law | — | Ohio |
| 36 | Vernon L. Scott | 4 | Grandson | — | Ohio |
| 37 | Barbara J. Scott | 2 | Granddaughter | — | Ohio |
| 38 | Francis R. Scott | 0 | Granddaughter | — | Ohio |
| 39 | Harold A. Miller | 28 | Head | Machinist | Ohio |
| 40 | Edith M. Miller | 28 | Wife | — | Ohio |
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)