MH
Mary Holden — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Ohio
Our Model Tree links this Mary Holden across the 1920, 1930 and 1940 US Censuses in Washington-County, Ohio (XGBoost, ~Confirmed), with identified parents Charles & Catherine — first a daughter (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Ohio |
| Surname | Holden |
| Given Name | Mary K. A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Warren Township |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Warren Township |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Mary Holden | Other | — | 22 | ~1918 |
| Rita Holden | Daughter | — | 14 | ~1926 |
| Katharine Holden | Spouse | — | 56 | ~1884 |
| Charles Holden | Son | — | 22 | ~1918 |
| Charles Holden | Head | — | 58 | ~1882 |
| Edna Holden | Daughter | — | 18 | ~1922 |
| Irene Holden | Daughter | — | 16 | ~1924 |
| Mary Holden | Daughter | — | 21 | ~1919 |
Census Appearances
1920
Washington, Ohio
Daughter, age 1
Washington, Ohio · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Holden |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Washington, Ohio
Daughter, age 11
Washington, Ohio · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Holden |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Washington-County, Ohio
Daughter, age 21
Washington-County, Ohio · implied b. ~1919 — 8 household members
| Surname | Holden |
| Given Name | Mary K. A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Warren Township |
| 1935 Residence (County) | Washington |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Holden across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Holden (~0.92 confidence) and mother Catherine Holden (~0.92 confidence) and mother Katharine Holden (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Holden
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Catherine Holden
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Katharine Holden
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Holden
Daughter · 1940 · age 21 · b. ~1919 · Ohio
★ You are viewing this record
Sibling
Charles Holden
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Holden
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Holden
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Holden
Sibling · 1940 · age 18
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 — Washington-County, Ohio
Open full size
1940 US Federal Census — Washington-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03166-00437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara J. Oliver | 17 | Daughter | — | Ohio |
| 2 | Walter J. Oliver | 15 | Son | — | Ohio |
| 3 | Tommy E. Oliver | 13 | Son | — | Ohio |
| 4 | Jerry T. Oliver | 12 | Son | — | Ohio |
| 5 | Betty E. Oliver | 9 | Daughter | — | Ohio |
| 6 | Donald J. Oliver | 6 | Son | — | Ohio |
| 7 | Sarah L. Buler | 81 | Mother in law | — | Ohio |
| 8 | Charles J. Holden | 58 | Head | Farmer | Pennsylvania |
| 9 | Katharine E. Holden | 56 | Wife | — | Pennsylvania |
| 10 | Mary K. A. Holden THIS PERSON | 21 | Daughter | — | Ohio |
| 11 | Edna E. Holden | 18 | Daughter | — | Ohio |
| 12 | Irene D. Holden | 16 | Daughter | — | Ohio |
| 13 | Rita M. Holden | 14 | Daughter | — | Ohio |
| 14 | Charles J. Holden | 22 | Son | Laborer | Ohio |
| 15 | Mary M. Holden | 22 | Daughter in law | — | West Virginia |
| 16 | Orvill R. O. Rummer | 53 | Head | Farmer | Ohio |
| 17 | Minnie M. Rummer | 48 | Wife | — | Ohio |
| 18 | Homer R. A. Rummer | 21 | Son | Jack Hammer | Ohio |
| 19 | Raymond A. O. Arnold | 47 | Head | Farmer | Ohio |
| 20 | Elizabeth T. Arnold | 44 | Wife | — | Ohio |
| 21 | Mark W. Arnold | 24 | Son | Machinist | Ohio |
| 22 | Margaret M. Arnold | 18 | Daughter | — | Ohio |
| 23 | Alice L. Arnold | 15 | Daughter | — | Ohio |
| 24 | Daniel J. Arnold | 13 | Son | — | Ohio |
| 25 | Ambrose R. Arnold | 9 | Son | — | Ohio |
| 26 | George E. Blatt | 49 | Head | Laborer | West Virginia |
| 27 | Silva M. O. Blatt | 18 | Wife | — | West Virginia |
| 28 | Clarence A. Mcnemar | 32 | Head | Laborer | West Virginia |
| 29 | Maude B. A. Mcnemar | 24 | Wife | — | West Virginia |
| 30 | George W. Lane | 63 | Head | Contractor | Ohio |
| 31 | Mary F. A. Lane | 64 | Wife | — | Ohio |
| 32 | Harry H. Vadekin | 45 | Son in law | Painter | Ohio |
| 33 | Iona G. Vadekin | 35 | Daughter | Clerk | Ohio |
| 34 | Henry C. O. Christy | 57 | Head | Farmer | Ohio |
| 35 | Mary C. Christy | 54 | Wife | — | Ohio |
| 36 | Mary K. Christy | 22 | Daughter | — | Ohio |
| 37 | Ethel Christy | 20 | Daughter | Basket Maker | Ohio |
| 38 | Frank Hall | 60 | Head | Laborer | Iowa |
| 39 | Wife Hall | 55 | Wife | — | West Virginia |
| 40 | Denver Mccoy | 13 | Grandson | — | West Virginia |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)